Who else would they blame? If these 1A schools are better as you say, the only way to change the outcomes are to coach better. Look at your personnel and scheme it up. Lesser teams have bettered plenty of favored teams by simply being better prepared, better coached, and scheming what compliments their strengths and talent. It's high school ball. You can't solve this by signing free agents or going to the transfer portal. If there's enough NIL money, maybe. LOL I'm teasing.
Better coaching and execution is all you can control right now and it's all the fans can ask for at this point. Frankly the parents, fans, and players deserve it.