You obviously did not pay any attention to Trump during the GOP primaries where he ripped the GOP establishment to pieces for months. Trump told the country the GOP establishment are stupid corrupt morons, he obliterated their candidates Kasich and Bush.
You're right
Trump insulted more Republicans than minorities & women in this country, and Republicans still voted for him--
The irony here, is that Hillary Clinton would have given Republicans a better deal on the Debt Ceiling time limit than Trump did--
They were warned over and over again about Trump, and they ignored all those warnings. Many Republicans wouldn't vote for Trump, because they never believed he was really a Republican.
Right now Nancy Pelosi and Chuck Schumer are working hard on their next piece of Legislation, which will probably be child care tax credits aka subsidies--because Trump announced those before the election, and his top adviser Ivanka wants them.
Donald Trump Proposes Child-Care Subsidies
You voted for it, you got it!