Reminder that keeping porn legal means that pornstars have legal protections that they will lose if porn is made illegal. Reminder that keeping porn legal means there are legal standards that can be put in place and enforced which results in better safety for all who are involved in porn's creation.
Reminder that porn will never stop being a thing. It just won't. If it's made illegal, then it will continue to be created and distributed - its just that it will now be done under the table, and with no safety regulations or protections for anyone.
Yes, the hard-right's ultimate plan is to use porn as a gateway from which to attack queer people, but even if that wasn't their plan, you should want to protect the legality of porn anyway.
Keeping porn legal means that the chances of sexual assault on those who work in the industry are reduced, and means that victims of assault are able to pursue legal action against their attackers. Keeping porn legal means that human trafficking is decreased, and it gives victims of human trafficking a legally supported escape route that would be lost if porn were made illegal.
Keeping porn legal means that anyone who is involved in making it - regardless of whether theyre making it simply because they want to, or because they're financially desperate -- is granted a measure of protection that they otherwise would not be. People love to raise the "but porn is made by desperate people who sell their body to survive," but a) some people make porn because they like it, and b) someone who is desperate enough to sell their body will do so regardless of whether it's legal or not. But when it's legal, that desperate person has far more protections and is less likely to be taken advantage of than when it's illegal.
Keeping porn legal protects people. Making it illegal will harm people. It's that simple.