It really does mimic the childish and catastrophic language used by rationalists. Wish there was a good word for it.
I bet there is a German compound one.
Childishandcatastropiclanguageusedbyrationalists doesn’t have that ring to it.
I feel like you would use an extended modifier instead: Die kindische und katastrophale von Rationalisten gebrauchte Sprache. Or maybe something like “die kindische und katastrophale Rationalistensprache”. Not sure though. This is pushing the limits of my B1 German though.
“Rationalistengeschwurbel” seems like it would work well
“fucken dumb bullshit for dickheads” as we say in the noble Strayan dialect