in my experience, you've been confusing him with someone else. Either that, or you have seen some very long posts and just assumed they contain a proportional amount of information.
No. He has always just proclaimed that Harris is more evil than Trump and never explained why, in the exact same way he just proclaimed that Clinton was evil than Trump and never explained why. Just like how he's constantly proclaimed that CRT is evil and Marxist but never explained why, and how he'll happily proclaim that affirmative action is the most damaging form of racism in the US but would never explain why.
You ask him about the basis of any of his bold statements on any issue and you're absolutely going to get a long digression about how he once visited Venezuala and just check out their economy. What you're not going to get is an explanation.