Scared to come out to my family and need advice as they may be homophobic

Emerald

I have known that I’m aroace and gender fluid since I was 13 but I have not came out to my family I have steered conversations into that territory but my parents and family other than my sister and a few others don’t understand any of it and have said slur’s in front of me they’re not homophobic so as soon as we say that what they just said was a slur they apologise. The last time I tried to come out to them my mother said that she didn’t want any of her children to be part of the lgbtq+ community as she just can’t understand it she said she would accept them but never be able to understand the reason why they’re like that. I love my family but if they keep saying stuff like this I will probably never come out to them and go low contact as soon as I move out like I would keep them on social media but I wouldn’t talk to them unless it was a family event or other reason. What do you think I should do? I want to give them a chance but I haven’t left school yet and don’t have a job so if they kick me out I would be homeless unless one of my friends family would take me in.