physically deal with people who continue to advocate for involuntary government.

The problem is the term "advocate" is way to open of a term. This will only lead to witch hunts where people will harm others for not being "libertarian enough" and people will be too afraid ever to question it, similar to how 1984 describes as double think . Not only that but the term is highly contradictory, think about it; will there be a regulations against selling the communist manifesto? isn't making business regulations anti-libertarian?