[sgt101]

Every time one of those images is viewed it's an attack on the person in it, the person who could not, and never can give their consent. Also the normalisation of the behavior in the images enables abusers.

The law is there to protect children, profit doesn't feature in the calculations.

[lopmotr]

Viewing an image obviously doesn't harm anyone directly. What's the chain of causation between that act and the harm, assuming no payment.

Normalization of behavior is a worry that always comes up with "immoral" information. Violent movies, violent video games, adult porn, strip clubs, prostitution, open homosexuality, etc. You'd need actual evidence to support the claim that it makes things worse not better or neutral.