You may personally be convinced of the President's wrondoing, but to try a sitting President for what is a grave offense, there are much higher standards of evidence and procedure.
The whole impeachment was an exercise in power from day one, but Democrats made a huge fuss about a similar exercise in power by Trump: appointing a Justice t the Supreme Court in an election year. Both were actions that where the actors were entirely within their rights (The lower house has the right to impeach, and the upper house has the right to try the President; similarly, a President absolutely has the right to appoint a Justice of the Supreme Court for as long as he is President.), but the President made no bones about what the whole thing was, while the Democrats tried hard to couch their act in moral and ethical terms. Judging by the way the election went (razor thin margins at almost every level with 70+ million popular votes for Trump), the public were having none of it.