Scared of the potty?

My sons nearly 2 he lets me know about taking a poo and I put him in pants a couple hours a day. I introduced the potty a couple weeks ago and he freaked out over it so I gave him some time and tried again he hates it and won’t go near it. I let him watch me pee and he likes to press the flush button! so I thought why not try him on the toilet he reacted the same as the potty total freak out! I don’t know what else to try.