I'm assuming that you shopped around before you bought THAT policy and that THAT policy is the one that best met your needs in terms of coverage and cost. Why would that change when Obamacare is gone? Where is the incentive for insurance companies to lower their rates now that they have a good idea what you're willing to pay?
You don't understand how Obamacare works. THAT is the only policy we can get as a self employed couple. THERE ARE NO OTHER OPTIONS and dropping it is also out of the question as the IRS will seize large amounts of money from us.
You also don't understand how insurance works or how rates are set. Even if insurance companies could arbitrarily charge high rates for sheer profit it wouldn't work in a competitive economy in a country like the U.S., once Obamacare is repealed. I'm done with this conversation. I recommend Milton and Rose Friedman's book Free To Choose. It's a quick read and available in paperback.