I would not read anything into this result. Every Trump supporter who was asked the question felt duty-bound to give this answer. If you asked fundamentalist Christians the same question about great figures of history you should not be surprised when they all answered "Jesus."
I teach English in Vietnam; in one lesson I taught many times at a previous school the question was to name someone the students admired. Every single girl in the class would answer "my mother." Because in this culture there is a sickening devotion to family devoid of support or warmth but founded solely on guilt and obligation.
This is people answering as they're "supposed to." just like since the advent of TV advertising in the mid 1950s people have been walking around beaming at the air because that's how they think they are "supposed to" behave.