Why the governments could not be fixed?

I struggle with this one. If they don’t know how to do X, find people that do and hire them as civil servant, with a slightly less than average salary.

I know it’s not that trivial, but I don’t see why conceptually it cannot be fixed?

( asking as a new us citizen btw; I voted for the first time a few month back. Yes, this place is fucked. I will probably not retire here. Or even stay that long.

But there is a few things going for us. For instance direct democracy is more alive than most. Electing judges, specifically in that debatable precedent system… is really powerful and readily accessible.)