Trying to murder someone, trying to rob a store, trying to fleece taxpayer money out of the budget and funnel it to yourself, all that stuff is illegal.
So I have to wonder why the Trumpkin line is "Oh he just ATTEMTPED to commit a crime, no big deal!"
We know Trump is a criminal who's going to retire from his presidency in 2020 at behest of the voters, since there are still ongoing state level investigations. Right now we get to laugh at how damning the report is and all it takes for his supporters to consider it a win is that he's not being impeached.
Democrats are simply making the right move by not impeaching. It would be a long trial that would tie up our government for months, and it's unlikely that they would convince enough bias Republicans to vote against their president, so in a way they're just going to concentrate on the things the public wants, concentrate on policy, and let Trump's own incompetence, criminality, and mouth carry him to a loss in the next election.