The only PragerU video I've watched all the way through was built around the thesis that fascism is a left-wing ideology because Hitler was the leader of the "National Socialists" (lol), and apparently all forms of authoritarianism=socialism. There are conservatives whose arguments I find well-constructed and compelling; Prager isn't one of them.
About 75% of their videos aren’t very good and blatant propaganda. That said, I am a YouTube subscriber because sometimes they have good material. Bad material includes:
https://youtu.be/S6HEH23W_bM - implies we should charge everyone the same amount of money, I. E. Bill Gates and the homeless guy on the street both pay $1,000
https://youtu.be/KeqBbO_jpXk - literally the most condescending video they have ever put up
I do recommend people watch those two videos, especially the second one, because it uses a lot of rhetoric that people would do well to avoid.