Unless you catch on to its effects first. Not everyone who acts and watches suddenly comes down with mental issues.

This isn't to say there aren't problems. Absolutely and really porn addiction does need to be addressed and called what it is. It should be a warning label like tobacco and alcohol.

But arbitrarily evil? No. That is a stretch. Porn isn't some irresistible drug that can't be satiated. That's your natural sex drive which doesn't change with or without porn.