Either people voted against him, for him, or abstained from voting (implicitly agreeing with whatever decision the majority made).
The last two groups there, vastly outweighed the first one in this election.
You're right, not everyone wanted this.... But that's how democracy is. You vote and, at least in theory, the person that the most people vote for (believe in/agree with), is then made president.
By definition, democracy will always have people who didn't vote for the current government.
All I'm saying is that either by action (voting for Trump) or inaction (not voting), a majority decided that he should become president.
Personally I blame the absentee voters. People who could have voted, but didn't, and by not voting, indirectly supported Trump in winning the election.
Unless there's a serious shake up of how things work in the USA, there's shit all that can be done about it now, since getting him out of office requires that the people near the top (senators/Congress/whatever) need to take action in indict him and start the process of ejecting him from office, but then they'll be left with the current VP, and I'm not sure that's better.
Either way, nobody at the top is taking action against Trump, so the whole thing is moot. They have grounds, but they are not willing to do it.