You seem to miss the fatal flaw in your idea. We can pool our resources all we want, we can't cover all the sickness and people and it would just end up paying pharmaceutical companies for existing. Whereas now we pay them for innovation and efficiency.
When I get sick my personal insurance that I pay for and choose will cover me. I won't get some massively mismanaged option run by government bureaucrats that have no reason to do well at their jobs.
Have you seen healthcare in other countries that have socialized it? Its ridiculous, surgeries are delayed for years, people die from strep because doctors refuse to do the bacterial test and hand them an aspirin and tell them to go home.
I defend President Trump because he's a businessman and knows all of this.
A government run healthcare system would be an absolute nightmare.