The EC and 2 senators per state system that the US uses seems to lead to a tyranny of the minority, especially if you consider that senate “rules” regarding filibustering, simple, absolute majorities are almost all conventions rather than laws or immutable procedures.
However, I do agree with your line of argument as it relates to constitutional amendments.
Edit: I said the executive could create law, when I meant to say they can direct action.
We're holding a knife by the blade and trying to cut with the handle and complaining it hurts. Of course it does. We're not using the tool properly.
We could also massively increase the number of states which would make the two points that all states get just for existing much less relevant (and have other benefits). Even if you just look at the house the number of people represented by any given person is massive compared to what it was 100yr ago let alone when the system was designed.