Since you of all people are broaching this subject, I will lay it out. I don't think you love him either.
I can't stand him, but if he wins the DNC nomination, I just don't see him getting very far without making some compromises with the party. If he can do that, he might have a chance of having some effect as president. I doubt that it is possible. I don't think he will get anything done. I actually don't think he will be able to get anything passed that will increase taxes by a whole lot. He won't be able to pass M4A.
Therefore, he's not actually such a threat. Why should I worry about huge tax hikes, if he really has very little chance of getting them passed?
As for you, I can admire your willingness to pay much more tax for something that will probably show you very little benefit. What I have a problem with in general, is that people are following this Bernard shitstain with such enthusiasm and so very little understanding of the economics of his proposals. He's just a terrible candidate. But blue no matter who, in 2020, is pragmatically sound, as long as sweeping economic changes are not too sweeping.
To be certain of what I am suggesting, it's that his terrible single-payer bill will actually make the goal of single-payer unobtainable because he's trying to force it down everyone's throat with huge tax hikes or massive debt. Some things take time. The system is too broken for immediate nationalization.