Many ultra wealthy support the idea of paying more to help the middle class. Not everyone is as greedy as you. (of course you are not even near that wealthy)
Then why are they still billionaires? Why don't they take it upon themselves to spend all their billions to start up scholastic foundations, housing projects, etc. If they need advice on how to spend their billions to help others, it's not hard. They don't need bernie sanders as president to enable them to help others.
That being said, if they want to spend their billions to help others, that doesn't mean i/many others want to spend our money to help others.
Oddly enough, they will remain billionaires and bitch about what others should do with their money
You call it greedy, I'll call it wanting to keep what I've earned.