Why not 110%? You would give that for your sports team, wouldn’t you?
In states like NY these proposals to jack up the Federal marginal tax rate combined with the high city and state income taxes might actually push marginal rates to 100% or more.
I posted on another thread that your rhetorical question actually makes perfect sense to a SJW. Since the idea is to have the wealthy pay their “fair share,” then it would be right to correct past imbalances as well as those going forward. Think of it as reparations taken from the evil capitalist exploiters.