That presumes one is going to play by the rules. The squatters aren’t playing by the rules. I betting when you show up with a bulldozer, anyone there will leave pretty fast once you start moving their car(s) around.
And you will end up with an article 15 if you are military like this lady.
Or the cops will be called and you will be arrested.
The squatters have nothing to lose and so do not need to play by the rules. You do.
Now if you want to be less dramatic but more effective you could try to get a law like the Florida statute 82.035 passed in your state.
Perhaps even one with more teeth.