Near as I can tell, the Yankees have a payroll of $206 million. The Red Sox payroll is $162 million. So if the Yankees disappeared, the Red Sox would become the new Yankees. The Yankees/Red Sox mini-war is a major reason that salaries have skyrocketed in the last seven or eight years. Both have nationwide fanbases, own their own TV networks, and price all but the wealthiest out of their stadiums.
So a Red Sox fan complaining about the Yankees payroll is just a hollow argument at best.
I would love to see the Red Sox at least become the new Yankees of the east coast (at least) since Los Angeles proper can use a better team in blue. Let's have some other team dominate the eastern seaboard for a change.
Heck, if the Dodgers and Giants moved out west from the east coast, I will take the Yankees in LA. I guarantee we have enough people in the city of Angels to fill enough seats. We can send you back the Dodgers in trade and us west coasters can throw in Seattle, too.