You missed one of the biggest ones.
Whenever Dems & other statist establishment pols get de facto tax rate hikes, they immediately start thinking of the projected add'l revenue (invariably greater than the actual increase in revenue realized) as a BIG OL' WINDFALL, & THEY NOW WANNA $PEND IT! Look back, e.g. at the rope-a-dope they played on GHW Bush in 1989-90. The ensuing economic slowdown (partly fallout from the 1986 'tax reform') was of course blamed on the Prez, giving us Willie-Boy in '92.
"Deficits" cannot be reduced without control of $pending. Demmies don't care about deficits & debt except as excuses to hike taxe$. The minute they smell more revenue, they wanna $pend it. Harry Reid reportedly wants to do another "stimulus" now!