LOL. Right back at you. Facts not to your liking? Too bad. Yes, facts are a stubborn thing. Accuse your opponent of making them up. I see YOU are the single-issue character here.
Apparently many are more expert in economic issues than you. You don't know the local markets. Since when did you become expert on Minnesota...or illegal Mexican wages for that matter? Nor evidently, can you be trusted on the larger national issues.
And I never said that all 70-% of the newly replaced roofs are leaking. But we are seeing increasingly more defects in roofs among those companies that rely on the increasingly less-skilled. They experience substantially higher complaints.
Do they go out of business? Maybe some will. But the price is what keeps them in the game. The point of diminishing returns for quality, has long since been past by some of them.