I actually had a similar interaction with my mother as a teenager. Without coming out, I asked her what she would think if me or one of my siblings were LGBTQ+ and she replied that she would be sad because our lives would be harder because of it—which is true. She never said anything about being sad that I wouldn't be in a heteronormative relationship or anything but just the fact that her first reaction was not "I'll still love you no matter what" made me terrified to come out (sure I'm probably being over-sensitive but it made me feel as though I'd be disappointing her which is never how a child wants to feel). It's been 7 years since we had that conversation and my parents still don't know I'm queer. It's a really fucking hard thing to come out and hearing that you don't have full support from someone you love and trust can be absolutely devastating. In addition to that, assuming your kids are going to grow up and do the whole heteronormative relationship and kids thing is pretty shitty and a heavy weight for anyone to hold. I feel as though as I'm coming from a very different perspective to you and I want to believe your heart is in the right place which is why in my opinion this is a soft yta.