This is a common fallacy.

The US is the oldest and most stable democracy.

It also works more-or-less as intended. On issues where there is broad consensus (e.g. COVID relief) it can move incredibly quickly. On issues where there is broad disagreement (e.g. abortion) it moves very slowly or not at all (requiring compromise).

I wish more countries were like the US (or, alternatively, like Switzerland, which represents the other extreme with their direct democracy).