A complete lacking of understanding of criminals, their motives and disincentives must be a prerequisite for becoming a democrat/liberal/progressive.
If we wish hard enough all the bad people will just become good and blow bubbles...
I think it's even worse than that. Yes, the useful idiots on the left believe as you say, but their masters in the royal court know better.
They have no intention of disarming their partners in the overthrow of our country. They only intend to disarm those who would resist their treason.