You're not wrong, but the issue is a larger one, and that's the WNY economy. Actually it's the NY State economy as well. I live in the Washington, DC, area and the whining about the local football team with the racist nickname is as bad as the griping about the Bills. But the big difference is that when the local football fans drive to work on Monday morning, they may be p*ssed about the 'Skins, but they're driving their BMWs, Mercedes-Benzes, Lexuses, etc. on their way to their decently paid to way-overpaid jobs that are the beneficiaries of being in the proximity of the federal government. Even during the recession when the area lost jobs and foreclosures were spiraling out of control, there were still a lot of people with good paying jobs -- contractors, "consultants," military, government, etc.
In Western New York, the economy is contracting. Well paying jobs with promising futures are at a premium, there is no federal government to provide a steady stream of income for every defense or high-tech company that puts out a shingle and a bid for a government contract.
If by some chance, Western New York could revive its economy, you'll see that the dark cloud hanging over the sports team usually lifts on payday.
And as a WNY expatriot I really wish the economy would pick up -- I'd love to come back home.