Would you support the highest marginal tax rate returning to the level it was during WWII?
That would be disastrous in our modern economy!
Why wasn't it disastrous back then? And for the decade plus after WWII that it remained that high?
Because America had the only industry left on earth, a world destroyed, unlimited demand, and limited labor. People and companies couldn't off-shore their profits like they can now. The purpose for taxes that high were to put a drag on the economy.