CEO Pay Cap: This would be tough to regulate due to the creative ways that executives get paid.

Luxury Taxes: Not enough volume to make a difference.

Roof: Wouldn't you still need welfare, then? Doesn't this defeat the purpose of basic income (e.g. eliminating the administrative overhead of welfare payments)?

Congress/Senate: They don't make big money from paychecks.

Automation taxing: The overhead of levying that tax in a fair and effective way is dizzying.