Discrimination: On the basis of Race, Color and Sex.....

 Discrimination is the act of making unjustified distinctions between human beings based on the groups, classes, or other categories to which they are perceived to belong. People may be discriminated on the basis of race, gender, age, religion, or sexual orientation, as well as other categories. Discrimination especially occurs when individuals or groups are unfairly treated in a way which is worse than other people are treated, on the basis of their actual or perceived membership in certain groups or social categories. It involves restricting members of one group from opportunities or privileges that are available to members of another group.

Discriminatory traditions, policies, ideas, practices and laws exist in many countries and institutions in all parts of the world, including territories where discrimination is generally looked down upon. In some places, attempts such as quotas have been used to benefit those who are believed to be current or past victims of discrimination. These attempts have often been met with controversy, and have sometimes been called reverse discrimination.

Racial and ethnic discrimination differentiates individuals on the basis of real and perceived racial and ethnic differences and leads to various forms of the ethnic penalty. It can also refer to the belief that groups of humans possess different behavioral traits corresponding to physical appearance and can be divided based on the superiority of one race over another. It may also mean prejudice, discrimination, or antagonism directed against other people because they are of a different race or ethnicity. Modern variants of racism are often based in social perceptions of biological differences between peoples. These views can take the form of social actions, practices or beliefs, or political systems in which different races are ranked as inherently superior or inferior to each other, based on presumed shared inheritable traits, abilities, or qualities. It has been official government policy in several countries, such as South Africa during the apartheid era. Discriminatory policies towards ethnic minorities include the race-based discrimination against ethnic Indians and Chinese in Malaysia After the Vietnam War, many Vietnamese refugees moved to Australia and the United States, where they face discrimination.

Sexism is a form of discrimination based on a person's sex or gender. It has been linked to stereotypes and gender roles, and may include the belief that one sex or gender is intrinsically superior to another. Extreme sexism may foster sexual harassment, rape, and other forms of sexual violence. Gender discrimination may encompass sexism, and is discrimination toward people based on their gender identity or their gender or sex differences. Gender discrimination is especially defined in terms of workplace inequality. It may arise from social or cultural customs and norms.

Intersex persons experience discrimination due to innate, atypical sex characteristics. Multiple jurisdictions now protect individuals on grounds of intersex status or sex characteristics. South Africa was the first country to explicitly add intersex to legislation, as part of the attribute of 'sex'. Australia was the first country to add an independent attribute, of 'intersex status'. Malta was the first to adopt a broader framework of 'sex characteristics', through legislation that also ended modifications to the sex characteristics of minors undertaken for social and cultural reasons. Global efforts such as the United Nations Sustainable Development Goal 5 is also aimed at ending all forms of discrimination on the basis of gender and sex.

One's sexual orientation is a "predilection for homosexuality, heterosexuality, or bisexuality". Like most minority groups, homosexuals and bisexuals are vulnerable to prejudice and discrimination from the majority group. They may experience hatred from others because of their sexuality; a term for such hatred based upon one's sexual orientation is often called homophobia. Many continue to hold negative feelings towards those with non-heterosexual orientations and will discriminate against people who have them or are thought to have them. People of other uncommon sexual orientations also experience discrimination. One study found its sample of heterosexuals to be more prejudiced against asexual people than to homosexual or bisexual people.

Employment discrimination based on sexual orientation varies by country. Revealing a lesbian sexual orientation (by means of mentioning an engagement in a rainbow organisation or by mentioning one's partner name) lowers employment opportunities in Cyprus and Greece but overall, it has no negative effect in Sweden and Belgium. In the latter country, even a positive effect of revealing a lesbian sexual orientation is found for women at their fertile ages.

Besides these academic studies, in 2009, ILGA published a report based on research carried out by Daniel Ottosson at Södertörn University College, Stockholm, Sweden. This research found that of the 80 countries around the world that continue to consider homosexuality illegal, five carry the death penalty for homosexual activity, and two do in some regions of the country. In the report, this is described as "State sponsored homophobia". This happens in Islamic states, or in two cases regions under Islamic authority. On February 5, 2005, the IRIN issued a reported titled "Iraq: Male homosexuality still a taboo". The article stated, among other things that honor killings by Iraqis against a gay family member are common and given some legal protection. In August 2009, Human Rights Watch published an extensive report detailing torture of men accused of being gay in Iraq, including the blocking of men's anuses with glue and then giving the men laxatives. Although gay marriage has been legal in South Africa since 2006, same-sex unions are often condemned as "un-African". Research conducted in 2009 shows 86% of black lesbians from the Western Cape live in fear of sexual assault.

A number of countries, especially those in the Western world, have passed measures to alleviate discrimination against sexual minorities, including laws against anti-gay hate crimes and workplace discrimination. Some have also legalized same-sex marriage or civil unions in order to grant same-sex couples the same protections and benefits as opposite-sex couples. In 2011, the United Nations passed its first resolution recognizing LGBT rights.