Yeah it’s not just “the libs” getting pissed off with him anymore. The GOP are finding him more and more troublesome and finding less and less reason to enable him, his base are getting fatigued with his bullshit and ironically, growing more and more tired of not winning and with the stock market tanking he’s not really got anything he can point to as an achievement.
It’s why he’s sitting firm over the wall, he needs a tangible victory to take to his base and campaign on. Democrats know that and that’s why, logistics and finances aside, they have no intention of giving it to him. Standing firm and being accused of owning the government shutdown is far less damaging politically than being weak and caving in to his demands and giving him his fecking wall.
There's an emerging sentiment that impeachment could happen when Republicans approach the Dems and ask them to begin the process, which of course would be a wink and a nod from the GOP that they have sufficient votes to convict in the Senate (which would only require 20 out of 53 defectors).