"Trump vs. the politics that Christianity requires"? Let's lower the bar and wonder about the kind of politics that the minimal standards of humanity requires.
Regardless of one's position on non-traditional sexual people one should be absolutely livid and resist with the strongest words and actions the Trump banning of transgender persons serving in the US Armed Forces AND how he did and is doing it.
Face it: by his action and how he has/is doing it places a vivid target on these and all transgenders, rendering them diminished, excluded, demeaned and legitimate targets of the basest, virulent and brutal hatemongers and self-satisfied fundamentalists. 
These persons are your/our brothers and sisters and we seem to be letting this happen without a whimper.
We seem to have forgotten that these standards apply to us as well. Shame on us....again.