If the battle for civilization comes down to the wimps versus the barbarians, the barbarians are going to win.
High tax rates in the upper income brackets allow politicians to win votes with class warfare rhetoric, painting their opponents as defenders of the rich. Meanwhile, the same politicians can win donations from the rich by creating tax loopholes that can keep the rich from actually paying those higher tax rates - or perhaps any taxes at all. What is worse than class warfare is phony class warfare. Slippery talk about 'fairness' is at the heart of this fraud by politicians seeking to squander more of the nation's resources.
When Congress votes for all sorts of benefits, without voting for enough taxes to pay for them, they get the support of those who have been promised the benefits, without getting grief from the taxpayers. It's strictly win-win as far as the welfare-state politicians are concerned. But it is strictly lose-lose, big-time, for the country, as deficits skyrocket.
What 'eminent domain' laws mean in practice is that politicians have a right to seize your property and turn it over to someone else, in order to gain campaign contributions and win votes.
Actually lowering the cost of insurance would be accomplished by such things as making it harder for lawyers to win frivolous lawsuits against insurance companies.