Most Americans look at an imperfect world and think, here I will build.
A communist looks at an imperfect world, including what you just built, and thinks “if only I had a million guns”.
We are dealing with Maoists, the most extreme radical of all the brands of communists. There's nothing Mao did that these people would not emulate in a heart beat albeit with modern touches, likely far more brutal - if that is humanly possible.