[Know your rights]

When someone can prove to me that porn teaches men and women to treat each other with greater respect and makes the world a better place, then I'll support it.

To permit something to be legal is not to "support" it; I'm against drunkenness even in the privacy of one's home, but I don't want it criminalized.

[Canticle_of_Deborah]

Humans have animal natures and spiritual natures. Porn feeds the animal nature which is insatiable. Eventually the porn viewer will act out his/her increasing fantasies. Ted Bundy was addicted to porn. Not every porn viewer is that twisted but abusers, rapists, etc. all have unhealthy views towards the opposite sex, usually encouraged by porn.

At this point I have no opinion whether porn should be illegal or not, but it offers nothing positive to society.