Well I mean, people can hate the fetish if they want to, just not the people who have/participate in the fetish It's like the saying "Hate the sin, love the sinner", except with the fetish. As a (mostly) closeted AB/DL, I 100% approve, as long as it's with consenting adults. Screw the people who whine about them being "pedophiles" and "grooming kids" and refusing to listen to the truth. We like diapers, baby toys, bottles, pacifiers and stuff, not actual little kids!
EDIT: Oh, and a lot of people who do anything AB/DL or DD/LG or any variant DON'T do it purely for sexual things. Some do, but not ALL. Even if is IS always purely sexual, it still wouldn't be that bad. Why? Because there's still no actual CHILDREN involved!
Oh, and even my DAD found out about my interest, and he brought it up as a joke once a while ago, but he literally has zero problem with it. A full grown MAN can accept a person's fetish, AND still treat them like a person. THAT'S maturity. How hard is it to accept a fetish? If you can accept LGBT+, otherkin, other races, and even different interests, how hard is it to accept a fetish? People who openly say "PEOPLE WHO LIKE THIS STUFF ARE GROSS PEDOS EWWW!" are the pure reason why I kept my fetish a secret for over 3 years since I was 12 and I'm 16 now, and even then I don't talk about it too much.