[dragonwriter]

> How would LGBT community liked it they could lose their jobs for being LGBT?

Under the interpretations until recently of federal statutes [1], and under the law of most US states, they can, and largely the same groups fighting against marriage equality have been fighting to preserve and extend that condition, as well.

[1] Though recent EEOC decisions finding that discrimination based on gender identity and/or sex stereotypes are subtypes of discrimination based on sex may significantly limit the degree to which that is in practice true under federal law, but AFAIK those agency interpretations have not yet been tested in the courts.