Anyone Else Would Go to Jail
For insurance companies, price-fixing (coordinating with others as to what they’ll charge you) is perfectly legal. They collude, and you get price-gouged. For any other industry, this would be a crime.
In 1944, Congress passed the McCarran-Ferguson Act, a law that exempts the insurance industry from anti-trust laws and allows the industry to collude on important components of insurance prices, an anti-competitive practice that is illegal for other industries.