I know smut may seem like a frivolous thing to be upset about, but crushing it is part of fascism. Controlling all forms of sexual expression is fascism. Only allowing certain kinds is fascism. Smut peddlers are always canaries in the coal mines.
It's also worth noting that some of these people consider the words "gay" or "lesbian" inherently pornographic. These attacks on smut cannot be ignored or dismissed.
One of the biggest things the christofascist crowd insists on is that the mere existence of LGBTQ+ people is pornographic. It's the whole central tenet of Moms For Liberty's nationwide book banning push.