The leftist is anti-individualistic, pro-collectivist. He wants society to solve every one’s problems for them, satisfy everyone’s needs
for them, take care of them. He is not the sort of person
who has an inner sense of confidence in his ability to solve
his own problems and satisfy his own needs. The leftist is
antagonistic to the concept of competition because, deep
inside, he feels like a loser.
The left looks at the 2nd amendment and says, hey, there's no INDIVIDUAL right to bear arms. That's for the militia.
And then when a handful of white guys create a militia (usually with the encouragement of some feds), the left loses their shit and labels them right-wing paramilitary racists and immediately finds ways to prosecute them for terrorism, illegal weapons, or racketeering.
The problem, as they see it, is white people having any means to defend themselves.