well... I wouldn't go so far as depriving liberals of all manner of free speech, they could just turn the tables on us but when liberals preach sterilization, government control, limits to our freedoms, eminent domain, aid and comforting our enemies ETC. That's the time to don the hard hats and get crazy.
We don’t deprive them of free speech through government, we make people who preach liberalism into social pariahs on a level to how pedophiles used to be treated. The only thing the government should be doing is staying out of our way when we combat these evil people.