Good luck finding a man that doesn’t. Yes, if it’s something really hard core or they have an addiction (something that is harmful per-say) then I believe it would be your place to interject, but it’s not an abnormal thing to do. Of course, you can choose who you date - but if you go into dating believing you’ll find a flurry of men who aren’t interested in pornography then I’d argue you’re being a tad naïve.