Bf seems homophobic

My boyfriend doesn’t have the same feelings when it comes to the LGBTQ community. This whole topic has been a huge argument for the last 3 days. He said he doesn’t know what he would do if our child ended up being gay or bi or trans and idk it’s made me feel a way. I honestly would not care. It’s their life and how they choose to live it is none of my business. I will love them regardless. I’ve looked into the future and seen my husband cutting off our child because he doesn’t agree with their life choices. Now, he’s said he doesn’t know how he would react but that alone is making me feel uneasy. I don’t know how to move forward because I love him so much and he is everything I ever wanted. But this one thing is stressing me out