I think it's more that he's a completely empty-headed idiot who doesn't know anything until someone else tells him what to think, **and that point really should have been emphasized all along**.
People attacking Trump for his beliefs, instead of for not having any, just enamored him to his supporters, many of whom respect the guy for having a spine.
Sadly, so many of his critics bought into the story that he had these strong stances, therefore supporting the myth that got him elected.