He is very popular with the old and retarded.
He is very popular with bums that are lazy and don't want to work hard yet feel that they're entitled to the same things that hard working people have earned.
Fuck Bernie, he's a lazy worthless old man that has NEVER worked a real job but talks shit and believes he knows and relates to working class folks. Bernie is like that drunkard fool at a bar that won't stfu, runs his mouth about things he has zero experience in
Honestly, I wouldn't even vote if Bernie somehow managed to get the nomination.
I don't have to worry about that though, because he won't be able to get nominated as no one who actually works takes him seriously