There are limits on speech. Defamation is not protected speech. Jones accusations were sick and he got what he deserved.
If Jones and Trump are silenced, rest assured the enemies of America will go after others, first high profile people like Joe Rogan and Tucker Carlson, then working their way down through the alt-right and then the more vociferous conservatives. They want conservatism to restrict the movement to ineffectual people like George Will or Sean Hannity, who are on the right wing of the Overton Window of acceptable opinion.
The lawfare against Trump and Jones is not isolated. Our rulers want an environment similar to Germany, Britain, and Canada, where real opposition is suppressed. Eve better, they would like America to become like the Soviet Bloc before 1989, where there is only one controlling party and some token opposition. All in the name of "democracy", "equity". or whatever the curren thing is.