Unemployment is money given away to another. It's a permanent giveaway.
A debt purchase is either money that was given to you, that you're now returning (Treasury securities) or money that you're giving to others which will be returned (corporate bonds). It's not a giveaway at all - the net exchange is $0.
These cannot be compared as equivalent.
The tax reduction changes the way loss is calculated to better capture the reality of the economy falling apart in one year, letting losses be deducted from income generated in past years. There's a tax savings, but it's reflective of real loss incurred by business.