It's also an unfortunate consequence of game theory. If one party Gerrymanders and the other does not, that party will solidify their hold over the House tighter and tighter. They'll also solidify their grip on the states (who run the elections, and who set the rules on who can vote and when they can vote). Trying to play nice and believe in the system is a recipe for being eradicated - it's exactly what's happened to the Democrats for the last 20 years.