Re: "The floor of the Senate"
They want to, there just aren't nearly enough of them willing to fight over it. The ones that would be willing to fight a war over it are the ones who showed up in Charlottesville chanting Nazi slogans.
The 49% who voted for Trump, or the 35-ish percent who still support him are not all angry oppressed white men. Most of them are just conservatives who tolerate Trump as a means to an end because they see democrats as worse.