What have trump supporters done to warrant their opinions mattering (aside from knowingly putting a criminal in office, of course)?
Supported a Republican president at near 40% approval without wavering, is what they did, and it factually matters.
The Senate who lives and breathes on public party support, to do the will of the people who elected them, may choose to accept that support. It's a loophole. They can vote away criminal behavior with public support, it's as simple as that. They know it, you know it, and they feel no shame or ethical compunction to do to do otherwise. Just the opposite, they feel it's righteous and warranted and good for the nation. Senate didn't want to hear Garland, so they didn't, and they were rewarded, and their voters were rewarded. House didn't want to uncover what happened in the Russian interference in our election, so they didn't. And they won support for doing the will of the people.
Epstein and all his co-conspirators got immunity for child sex trafficking, likely hundreds of young girls...and he doesn't have the power of the presidency, nor does he have 40% public support. What do you think is really gonna happen?
They need to get hard evidence of multiple felonies, including obstruction, and likely conspiracy against the Untied States, to have a chance of getting him out of office, and that's entirely up to what actually happened, and what Mueller finds. Anything lesser may result in impeachment, with no removal. Which may be the right play to send a message, but think about where that leaves us.
Then we enter the next 2 years leading up to the 2020 election with a self-proclaimed, vindicated Trump, immune from prosecution, "cleared" by the Senate, and no Mueller investigation to slow him down, and this sort of behavior will have been rewarded in the biggest way. Rig elections, collude with Russia, break the law, gain support.
People thought he could shoot someone in the middle of the street and get away with it. That's not accurate, people were being too modest.
He can shoot someone in the middle of the street, and his support will *intensify*.