Feeling bad about myself

Every time I hear my family talking bad about the lgbt community it’s makes me feel like shit. It’s just another reminder that I could never come out to my family because they would probably never speak to me again. I just hate that I have to hide who I am because they think theirs something wrong with it. There’s nobody in my family that isn’t homophobic, like I’m not joking when I say there isn’t anybody. My sister is just upset at the fact that I openly support people who are part of the lgbt community and it’s like if people don’t like the fact that I support the lgbt community how are they gonna accept the fact that I’m a part of it? I feel like I can’t really be happy and myself because I have pretend to be someone else.