"They cannot do the same. A socialist hellhole requires everyone to buy into the system. Individuals, even just a handful, will dismantle everything. Thus, their ‘peaceful’ society is based on the outright murder of anyone who doesn’t conform. That’s not peace nor has it ever been about peace. It’s all about controlling others."
- Robb Allen
Robb is right. Leftists, progressives, collectivists, socialists, whatever you want to call them are not peaceful. Their utopia is predicated upon the ability to force you and I to conform to their utopian ideals. If this cannot be done peacefully (and it cannot) then it will be done by force, as has been the case with Leftists throughout history. The history of the left is filled with disarmament, murder and genocide, all in the name of achieving "utopia." Anyone who tries to convince you that Leftists are peaceful is full of it.
Scratch a Leftist and you'll find violence, or at least acceptance of and the advocating of violence for political means. Their goals cannot be achieved without force.