The flip side is that you can't fight a police state by blowing up houses, because you cut off the support of your people. (That is, unless the government is already busy blowing up houses and people decide there's no other way out.)
I always feel that "well-regulated militias" acting as a counterweight to the US government is a silly idea, because by the time a militia is called into action, (1) the government can also mobilize all its shiny toys and crush whoever's in the way, and (2) WTF were you doing while your country slid slowly and painfully into the level of present-day Iraq?