How is their argument silly? For many, God is an archetypical metaphor for a Daddy that must be feared and obeyed. Trump's election showed that a huge percentage of religious Americans have an authoritarian bent.
I've stated this before and I'll state it again: Trump won on his economics, not his social positions. The rust belt won him the election, where many people felt left behind and he promised to bring manufacturing back. It's hard to blame them based on Hillary's position.
Authoritarian tendencies polled strong among Trump supporters.