Supporting any US President of the last century or so is morally dubious(if you consider mass murder and toppling democratic regimes morally dubious). Like Chomsky likes to say, if US Presidents were held to the standards of the Nuremberg principles, they would all be executed. In that regard, Trump has so far done less harm than most recent Presidents.

https://www.youtube.com/watch?v=5BXtgq0Nhsc