The American system has problems that the founders did not forsee or wouldn’t want to acknowledge, but when other democratic countries are met with such issues they tend to rewrite their constitution (or corresponding legal documents) while America just stands by it’s flaws. Something that, again, is a feature of the flawed system the framers of the constitution either didn’t see or didn’t want to see.

I don’t think things were intended to be so difficult to change in the US that the system grinds to a halt, but at the same time the constitution is obviously written to slow change down.

This said I still think it’s a preferable system to more authoritarian ones. Nowhere near perfect though. Could be way more democratic.