Leftwing libertarians? Statist libertarians? Libertarians who aren't 'anti-socialist'?!?!

No such thing. Someone's been lying to you. There are individualists and statists. There are Leftists who like to call themselves libertarians, but they're just statists who will argue why some individual rights simply aren't necessary. Anyone who calls themselves a "left-leaning libertarian" is usually an ex-socialist who's trying to make himself feel better.
"I swear! I don't have to totally give up on my socialist dreams in order to become rational!"


feh