Why should Christians be expected to criticize Trump? We have acknowledged his moral failings and vices as being bad, but he has done more for Christians than any President has in a long time. He is anti-infanticide and he does more than just pay lip-service to Freedom of Religion.
All Christians (and everyone else for that matter) are sinners just like Trump. We all have different sets of sins but we all sin. I am certainly glad that most people judge me as harshly as I judge myself. Like most, I am a hypocrite and sometimes my words don't align with my behavior. That doesn't make what I say wrong nor what I do right. When each is judged in context and intent my right or wrongness will be self-evident.
This, I believe, is how most Christians judge Trump.