Controlling who has the vote has long been an issue, but denying political power to a region is a different category of thing than denying it to poor people etc.
Here is a list from English Wikipedia about the floods. The Dutch Wikipedia has much more info on the flood, as well as a museum in Leyden (from Rijkswaterstaat if I remember well). Not everyone can read the Dutch language. https://en.m.wikipedia.org/wiki/List_of_floods_in_the_Nether...
Anyway, money is fungible you could say you’re helping Mississippi schools just as people in Mississippi schools are helping your local schools. Or you can think of it like the electric grid where money doesn’t get sent around the country just shifted left and right regionally which smooths things out.
The problem is that the US isn't really trying, and there's a large movement that's actively trying to make the government worse. Fix that, and I think a lot of problems will disappear.