Earlier quoted context omitted.
Which were also predominantly rural. There was no country on earth with a majority urban population until well into the 20th century.
Nobody said cities needed a majority to inspire fear of the way they concentrated political power. The founders’ concerns about that are well-documented. A cursory search yielded a decent starting point: https://www.planetizen.com/node/18841
Unlike most people today trying to come up with justifications for an obviously broken system, the founders knew that minority rule is worse than majority rule.
In every document where the framers discuss "tyranny of the majority", it is clear that their solution is not minority rule, it is CONSENSUS. That is why the most important functions of government: constitutional changes, impeachments, censorship, rule changes, and veto overrides, require supermajorities.
You don't overcome tyranny of the majority by letting minorities win. That's just regular tyranny.