The Democrats are overplaying their hand, and there were signs of the effect right after the election. I read a lot of comments from Republicans/conservatives who didn't like Trump saying "I don't like Trump, but the way the left is behaving is forcing me to defend him." The same thing is happening in Congress. If the Democrats are going to take everything to 11 anyway, then there's no reason for the GOP not to play hardball as well, because the Democrats already took compromise of the table.
And I think you're correct here, too.
I think the Democrats still don't really understand the dynamic that got Trump elected in the first place, a lot of which had to do with fatigue, mistrust, and frustration with the Democrat/Media Outrage Industry.
For all of Trump's stupid rookie mistakes (and there are a lot of those), he has scattered a few good things among them, which do not fit into the spiraling hysteria. Rational, non-partisan people can recognize these and discuss them. For example, Trump's so-called "Muslim Ban" was ham-handed and too susceptible to misinterpretation; but I know for a fact that reasonable people across the political spectrum can at least acknowledge the underlying issues it addresses. The fact that the Democrats are manifestly unwilling to discuss such things rationally is obvious to them.
Another factor is the demonstrations in deep blue cities, many of which are violent in words and sometimes in action. They are properly understood to be a part of the Democrats' response, and for every "I'm troubled" from the oleaginous Mr. Schumer, there's some anarchist in a hoody blocking traffic in Portland who's pissing off the very people Schumer would like to impress.
