My first reaction is a sum of “stick with the devil you know” and “the simpler the better”. So I would be against changing.

I like what we have in Brazil (for executive elections), and I think it is better than what they have in the US. But I don’t think changing the US system to two rounds will make things better there. That might sound contradictory, but I think sticking with a voting system has benefits for democracy, even if, in isolation, that system is subpar. Predictability is voting system is very desirable in a democracy, I think. Same with trust.

I think we have to improve democracy by other means, not a simple “fix” through a voting system. I don’t know what those other means are. It is a complex system. But I am skeptical that changing voting systems is part of the solution.

I agree, there’s no single tweak that would “fix democracy”. I’m just assuming that something like this could improve voting expressiveness in exchange for just a little bit of complexity.