The founding fathers were correct. A pure democracy is also known as mob rule. Anytime you can get 51% to agree with you, you can do whatever you like.
If 51% vote to take the homes of black people, that’s decided and done.
Which is why modern democracies are all some form of representative democracy. Which in theory is supposed to act as a sort of check and balance on the system.
I’m not following your argument, though I am slightly drunk. The disproportionate representation that’s the focus of the post means that less than 51% of the populace could wield the levers of power in the Senate. That’s minority rule, which is even worse than mob rule.
I get that mob rule is bad, and that we need checks in place to curb the possibility of abuses of power, but I see that as necessitating laws for super majorities and ranked choice or other ways of ensuring less extreme representatives getting into power.