The problem is that the top 25% isn’t an “out group” in either coalition. You have Facebook PMs who vote blue and guys who own a small plumbing company who vote red both making $1 million+ annually and neither wanting their own taxes to go up. Then there are the guys below them looking up. Over 10% of the country will be in the top 1% of earners at some point in their life. So the guys pulling in a few hundred K as a senior engineer or construction manager don’t want their taxes to go up either.