One would think that after all the polls leading into last years Presidential election (the same polls that said Hillary was going to win the election hands down) that you would not put so much faith in opinion polls...... . The thing about polls is whoever is paying for them can buy whatever results they want. And people like you keep falling for it. It's going to be a long 8 years for you.
So basically by definition roughly half of Trump's voters now think voting for him was a mistake, and they are dead set against his initiatives. They didn't vote for what he has been doing, now they're mad at him?