and it makes perfect sense Cytos,
Companies and Rich people establish in cities where its cheap so they preserve most money,
They give people jobs, people then can consume products, increasing the local businesses, places can expand and hire more people, so people move there. In addition, with many people comes many taxes to collect, which the city can then use to support the people (and in liberal cities funnel money to help the "lessers")
End result is a big city.
But with a big city comes more costs, so taxes are added to compensate, meaning the initial businesses will be strained, and eventually it will be more profitable to move rather than endure.
Which then gets businesses in other states for example,
And with the rich gone, a chunk of tax money moves with it, so the "liberal" solution is to raise more taxes to make up for it, making the average people strained more, so they move too
Hence people flood away from cities
