He appears to be pretty young, see the photo at the top: https://forward.com/fast-forward/480359/david-bateman-entrat...
So, perhaps some other kind of mental illness. It was telling that he basically doubled down with a sort of "sorry, sorry, but it's still a Jewish plot" in his apology.
Edit: He's likely 42 or 43, based on some old (2002/2003) stories about founding the company after dropping out of BYU.