Trump’s problem with the tax seems less philosophical than the fact the national debt has increased so much that his proposal would no longer erase it. But that’s not really a good reason to drop the idea. Even if it wouldn’t any longer erase the national debt, erasing $6 trillion or so would go a long way to getting our debt into a more stable position, no?
The point is there are serious philosophical and economic reasons to oppose a massive wealth tax of the type Trump once proposed. But those aren’t the arguments Trump is standing on to explain his reversal in position. Quite the opposite. He maintains the proposal remains fundamentally conservative.