One opinion.  Here in germany, Beatrice Weder di Mauro, one of our "Wise Economics" consulting the government., who usually isn't with Keynes either (you could spell his name right, by the way), think that the whole package is a must right now. It won't solve anything though, but it may keep unemployment below 20% in the long run. 

There are no experiences to a crisis of this scale. The only one of a compareable size was ended with Roosevelt's New Deal, which was at least heavily influenced by Keynes ideas, so there is at least a hint that spending money won't make things worse. 

By the way, I have no idea how the american government could have reliable income without taxes. The last tax cut was financed by raising the debts. 

A ship in port is safe; but that is not what ships are built for.
Sail out to sea and do new things.
-"Amazing Grace" Hopper

Avatar image of me done by Chidori.