"Trumpie" can be used to describe someone who is not aware of the struggles that minorities face on a daily basis, or is aware of them but does not care. They may be homophobic, racist and/or sexist. Most likely a Trump supporter.
After condemning Trump's plan to block all Muslims from immigrating to the United States, pundits predicted the decline of his presidential campaign for the Trumpteenth time.
Person 1: *looking at news* God damn them trumpies are at it again
Person 2: what they doin this time
Person 1: destroying random official government buildings
Person 2: aww they did that last week do they ever do anything interesting?
Person 1: naw just the same thing over and over again...