It’s because you’d have to be extremely stupid and tin-eared to lose to Hillary Clinton. It’d take real skill for that. And Bernie Sanders is up to the challenge:
New marginal rates (federal only) for Sanders HC/SS plans: Under $250k: +8.4% $250k-$500k: ca. 56% $500-$2mm: ca 62% Above: 67-71%
— Megan McArdle (@asymmetricinfo) January 26, 2016
…Spoiler warning: the very rich will figure out how to avoid a confiscatory tax marginal rate of 62% or higher. Most of the people reading this would end up being stuck paying the extra 8.4% in taxes, though. You do, as they say, the math.
PS: It occurs to me that the peculiar genius of the American upper classes was (note tense, alas) in realizing that the American public will largely not care if rich people are rich, just so long as the rich people do not hassle the not-rich people. This was a genuine innovation, and I’m sorry to see it fall into disuse. But not as sorry as the aforementioned rich people might end up being.