>They lost the fight and none of the evils they claimed came to pass.
You sure about that?
Christian bakers being hounded for years because they don't want to make a cake which artistically expresses support for gay marriage. It's worth looking at the masterpiece cakeshop case, because you realize that they've been targeted for legal harassment in a premeditated way, not simply because someone couldn't find cake.
You can look up some of the statistics on political and religious discrimination in academia and some job fields, and try to think how that would look to you if you were a conservative or a Christian.you understand that you would have to live your life in a kind of hiding, while listening to people flagrantly insult your beliefs on a regular basis to guffaws and applause.
I'd also point to how we now see little boys performing sexual dances in front of groups of adult men or offering money. Stripping, blowing kisses, and so on.
Trans kids. Hormone replacement for 12 year olds.
Then there's education. Children being taught that women are men, men or women, and so on. Your children.
If you love all these things then you wouldn't think anything was wrong, however you have to acknowledge that they're not the same as gay marriage but if gay marriage had not happened they would not have happened either. Ultimately it comes down to what do you think a healthy society should look like. If your personal values take sexual freedom has the highest value, then yes you want this direction. Others believe that society should mold individuals into healthier forms as a way of helping them and strengthening the group. These are moral intuitions, axiomatic.
EDIT: I think from this comment it looks like you just failed the ideological turing test (google it); you haven't been consuming the other side's propaganda/opinions straight from source, you've been consuming your side's propaganda/opinions about the other side. So fundamentally you don't know what the other side is thinking. (This is common; it's been demonstrated empirically that conservatives can predict leftists' response to political questions better than the other way around, probably because leftists control education and media so rightists are forced to consume their messages in volume, but not the other way around.)