Discrimination, according to Merriam Webster's dictionary, is the process by which two stimuli differing in some aspect are responded to differently.
https://en.wikipedia.org/wiki/Discrimination_in_the_United_States
Gay black men are extremely likely to experience intersectional discrimination. In the United States, the children of gay African-American men have a poverty rate of 52 percent, the highest in the country.
https://en.wikipedia.org/wiki/Discrimination_in_the_United_States
Racial discrimination was not only used by adults but children as well thought that races should not interact with one another. An example of this is the experiences Ruby Bridges had when she was one of the first black children to be integrated into an all-white school.
https://en.wikipedia.org/wiki/Discrimination_in_the_United_States
Sex discrimination involves treating someone (an applicant or employee) unfavorably because of that person's sex. Sex discrimination also can involve treating someone less favorably because of his or her connection with an organization or group that is generally associated with people of a certain sex.
http://www.eeoc.gov/laws/types/sex.cfm
Gender discrimination is another form of discrimination. Women are often seen as an expense to their employers because they take days off for children, need time off for maternity leave and are stereotyped as more emotional.
https://en.wikipedia.org/wiki/Discrimination_in_the_United_States
An employment policy or practice that applies to everyone, regardless of sex, can be illegal if it has a negative impact on the employment of people of a certain sex and is not job-related or necessary to the operation of the business.
http://www.eeoc.gov/laws/types/sex.cfm
Immigrants to the United States are affected by a totally separate type of discrimination. Some people feel as though the large amounts of people being allowed into the country are cause for alarm, therefore discriminate against them.
https://en.wikipedia.org/wiki/Discrimination_in_the_United_States
Discrimination against an individual because of gender identity, including transgender status, or because of sexual orientation is discrimination because of sex in violation of Title VII.
http://www.eeoc.gov/laws/types/sex.cfm
For years, Equality Pennsylvania has been working to change that – advocating for a statewide law that prohibits discrimination on the basis of sexual orientation and gender identity in matters of employment, housing, and public accommodations.
http://equalitypa.org/what-we-do/ending-discrimination/
Here in the commonwealth, LGBT people can be fired, denied a mortgage, or refused service at a hotel, library, or hospital just because of who they are or who they love.
http://equalitypa.org/what-we-do/ending-discrimination/
what ended the gender discrimination
The gender discrimination is ended because of sexual orientation is discrimination because of sex in violation of Title VII.