The Left will scream if you attempt to slow leftward movement. They will go into hysterics if you attempt to halt leftward movement for a while. They will go into rage if you attempt to reverse Leftist gains.
The lesson from this, is that if they are going to scream anyway, you might as well “go big”. Like Machiavelli once said, “do not do your enemy a small injury”. Do things to permanently cripple their power. I remember the screaming in Wisconsin when Scott Walker and the WI Republicans fought to pass Right to Work. It was a long and bitter fight, but the result was a permanent crippling of one of the Dems main bases of support.
Trump needs to do similar things : identify things which will permanently cripple the Dems, and go for them. Eliminate government unions.
Slash funding to leftist universities. Etc
Completely close the Department of Education.
But really, that’s all that Lincoln wanted to do, to contain slavery and impose tariffs on manufactured goods. That was enough to make the South go apes@#$ at the time. It may yet suffice to start CW II. Same mindset, different era.