The courts ruled on that, because of the immediate and demonstrable harm from yelling fire in a theatre.
You don’t think there was an equivalent to porn in the days of the Founding Fathers? I can most assure you that porn is age-old and the Founding Fathers had access to porn if they wanted it.
Just like advanced guns, there was porn in the days of the Founding Fathers.
Everything about our constitution is Godly, including the First Amendment.
But you can’t make a Godly argument in favor of porn.
Here’s a simple way to understand it. The use of pornography is adultery, given what Christ tells us about looking on a woman with lust.
The founders did not intend to protect pornography.