There is plenty of competition in insurance, don't let them fool you. If a company doesn't participate in a specific market it's because there is no money in it.
The whole concept of Obamacare was drafted by a conservative organization to make the risk pool as large as possible with lots of young healthy people so the prices would be cheaper for everyone. However there is nothing being proposed that addresses healthcare costs. Right now the private medical industry is fucking us hard. The only thing that can change that is govt regulation. Or just abolish the employer mandate and watch them scramble for individual business.