I do think if one partner is into porn and the other isn't, then it's something that needs to be talked about.

The OP seems to me be suggesting that only men like porn, but there are women who also like porn. I think it's too simplistic to just make a blanket statement and say "porn is bad".

I'm not pretending. I honestly don't know if there is enough evidence that suggests that porn is a problem. Would the OP like to make a better case?