Nobody is going to compare hardcore porn with uncovered hair.
Why not? There are billions who believe that uncovered hair (only female hair, though) is immoral. Millions of them believe it fervently enough to advocate or practice the direct or indirect use of force, including legal bans, to prevent it.
I can and do compare that to your advocacy of the indirect use of force, a legal ban, to prevent access to all pictures of genitalia for everyone, based on your own personal opinions about what is and is not moral.
Such as?
Recreational air travel, consumer financing interest rates exceeding 3x the inflation rate, predatory pharmaceutical pricing, violence against women's health care or family planning services, parking space minimum requirements in business zoning laws, FGM, castes, jihad, and plastic clamshell packaging. If you want to actually discuss why I believe any of them is immoral, and/or what should or shouldn't be done about them, please start a new thread as it would be off topic here. The point is that a personal opinion that something is immoral is far from a sufficient argument for making it illegal.