Yep...they sure did. As did the Obama Administration. As did the Bush Administration. As did the Clinton Administration. As did the Bush Administration. As did the Reagan Administration...etc, etc, etc...ad nauseum back into the beginning.
It's all a violation. If government is attempting to regulate, punish, moderate, stifle, browbeat, network, make politically correct, forcibly redefine, or otherwise influence free speech to the intent of a public serpent or those they give their true allegiance to ..then it is a violation of free speech.
Has it occurred to you that anything you set in motion will inevitably turned against you as well? The leftist authoritarians want to label anyone who wants to own a gun as being unstable or dangerous. The rightest authoritarians want to do the same thing...but they think somehow that the rules won't be applied to them.
Every time a shooting happens folks want to attribute the actions to a whole group. Well the shooters are a vanishingly small percentage of folks...and there's been a number of every possible group that has done these things. Stop letting your own biases create support for things that are harmful to all.
Other countries have done what? Charged their consumers more for American goods than we charged our consumers for their goods?!? Oh Lawd...their governments were bigger tax collectors than ours...we're losing at something...we gotta collect moar taxes on our consumers!!!