I'm 60, so I've had multiple forms of insurance for many years. Being self-employed, I pay my own health insurance, I carry business insurance, I have insurance on my equipment. My house is insured, as is my car. I've made a few claims over the years and have yet to have an intolerably negative outcome. Yes, a carrier dropped me after a car accident (not my fault, but it cost them a new car because they couldn't collect off the uninsured deadbeat that hit me), but I was able to easily find another insurer that turned out to cost me less. Overall, my experiences with insurance companies has been positive.
It sounds to me like you have issues with large companies making a profit. I know that you are not alone in that sentiment, there are many people that feel that big companies should be taxed out of existence. My take is different. Big companies are economy drivers. They employ people, they buy products and services, and they provide products and services essential to our economy, individual well-being, national security and...that list could go on and on. They are in business to make money, just like small businesses, only they've been more successful at it. And taxation is the most inefficient and damaging method to effect better income equity. Raise up the poor with better education and employment opportunities, rather than squashing the rich. The top 10% already pay an overwhelming amount of the taxes.
As for capital gains, if you ever manage to save enough money to buy a CD, or invest in some other manner, you'll understand and appreciate the difference between earned income and capital gains. I'm counting on capital gains to get me through life after I stop working.