http://www.eeoc.gov/facts/qanda.html
Title VII of the Civil Rights Act of 1964 (Title VII), which prohibits employment discrimination based on race, color, religion, sex, or national origin
So everyone is protected against employment discrimination, except if you are a homosexual.
Again, what rights are involved here?
You apparently don't understand what a "right" is and is not. The two big characteristics of a right are that it is a restriction on the government and it applies to all citizens. So, if you are claiming something is a right, then any and every citizen has claim to it. To claim that certain citizens have a right and certain citizens don't is an oxymoron. If one citizen doesn't have the right then no citizen has the right.
Besides, the law equally applies to everyone in this instance. A gay black man and a straight black man are both equally protected against employment discrimination on the basis of "race, color, religion, sex, or national origin." You seem to be distorting the law and assuming that it protects against
any type of discrimination which it does not.
The civil rights act was NEVER intended to protect against ANY and ALL employment discrimination. Only a protection of the specific instances listed in the law.
The black man is also protected from being turned away from a job because of his race, where as a homosexual can be. Once again they are both people where one is protected and one isn't.
You don't seem to know what equal protection under the law is and is not. It is spelled out pretty clearly in the 14th Amendment, "no state shall ... deny to any person within its jurisdiction the equal protection of the laws". It is a prevention against arbitrary application of the law.
What you are citing is not an arbitrary
application of law, but simply an example of one law, as written and
equally applied protecting one group but not another that you think should be protected. So it is not an issue of equal protection under the law but of a lack of protection under the law, in your view.
You need to view the law as it was written and not as you
wish it should be applied.