“$40 Trillion, but most people never do the math to realize this is an order of magnitude more expensive than the current worst case scenario.”
On top of that, but you also have to finance a bureaucracy to collect (somehow) all this money, give it back out, and check for compliance with the named conditions.
Everybody always tends to assume that the cost of a government program is equal to what that program gives out, but there’s always money lost within the process.
Everybody always tends to assume that the cost of a government program is equal to what that program gives out
And yet another reason why tax rate cuts are better than tax credits or other incentives. You send 1$ to the government and even if they send it back to you it still cost some amount of money more than if you had just kept it in the first place. It’s similar to the “Mail in rebates” you get at the store. You pay for postage, your time, gas etc etc to get your 10$ back…which usually ends up being around 10$ so you never send the thing in anyway 
~Matt