I just want to commend you on asking for help, and based on your post and replies, it sounds like you can at least offload the belief that you hate children, because it doesn’t seem that way, only that you’re very triggered by the noise, which I can totally relate to. It happens for me with kids and barking dogs, and I have to manage the sound with music and earbuds. Sound sensitivity and being stressed by it is very real for a number of conditions or conditioned mentalities, so I wouldn’t be so hard on yourself about it when it’s clear you’re empathetic and don’t want to feel that way, but seeking therapy with someone familiar with such reactions is probably a good idea. Though ultimately personal noise management may still be a big part of the solution.