"The rationalists" don't own rationality. I don't think the specific community of people I'm talking about that call themselves rationalists have a monopoly on actually teaching practical rational thinking, although they do have some very good materials that explain a lot of valuable ideas and concepts, which I am grateful for.

From their own philosophy, they claim that "rationality is systematized winning" and everyone I've known that decided to focus their life around any of the 3 things you mentioned above, had consequences that were close to the exact opposite of "systematized winning."