Since porn hasn’t been the same since VHS & Beta became popular for home video and even less so since the Internet, it’s best to just criticize the acting and plot in modern porn so that it gets viewed as ridiculous and unwatchable.
Tho if you’re including topless cis women as porn and you’re a straight guy, just pretend everyone’s a guy unless their pussy lips are shown. Older PG-13, PG and even G rated movies used to get away with bare ass and female tits.
Most important of all, find some other interest or hobby to deviate yourself from pornography.