I honestly don’t know if I buy the “Republicans are all stoopid” argument entirely; there are plenty of relatively intelligent people that have supported him.

More than a lack of intelligence, I think it’s more a radical lack of any empathy or concern for anyone they don’t see as being on their same side. I mean, the Republican platform is essentially nothing more than “Own the Libs” at this point. It’s not so much that they don’t necessarily know the consequences of their actions; they don’t care, and would rather prioritize hurting their enemies.