The thing is we cannot say it's not the case. I used to think like you as well.
That's the disturbing problem I witness with people writing off quantum mechanics as not being deterministic. Magic as an adult is known to be trickery and only seems to be magic when lacking understanding of what forces is resulting in the trickery.
Super determinism is a situation where we could be actually witnessing determinism from quantum mechanics but similar to what we believe is true randomness and cannot be observed for the forces causing it.
The only thing I'm hopeful for is witnessing in my life a way to explain how something cannot be deterministic with real understanding. Besides people just thinking it must be random and if I spend hours all day thinking about this it seems like it cannot happen because it's an impossibility.