The "Trump tax cuts" were fabriated by Congress, nearly as I can tell. Trump signed what they handed him.
My real point is that, in politics, it's obvious you need as many allies as you can find. Pissing everyone off isn't a route to getting things done. Reagan had O'Neill as an ally on the other side of the aisle, and it helped him get stuff done, at least earlier in his Administration.
Trump is full of bluster and promises about this and that, to me, it's nearly all hot air, he has no clue how to get actual useful legislation passed (if here is such a thing).