You make a good point
As you describe them, the workings of politics are deep and complex, requiring experience, skills, and intelligence. And only people of similar backgrounds can analyze them properly and discern the realities involved.
Yet any gasbrained, pencil-necked idiot with a pulse who can manage to refrain from peeing down his own leg long enough to stand in a voting booth can vote without restriction on who gets to run the entire outfit.
Go figure.