Let me lay out two narratives
Healthcare in the US is dominated and corrupted by exploitative market forces and profiteering billionaires. They make their dividends for shareholders by finding new ways to deny coverage, raise premiums, kick people out of in-patient care and being subsidized by taxpayers. People get more fed up as they can't afford to live, and people are dying in emergency rooms as they wait because of greedy CEOs. Along comes one man who despite having a privileged background and easy path in a lucrative software field, he chooses to give up his chance in life in order to strike a blow for all the oppressed people of the world and cause some real change. He shoots down one of the CEOs that has been responsible for the deaths of untold tens of thousands in the name of corporate greed, and in the long run his actions will save so many lives because of the movement he has kick started.
Healthcare in the US is dominated by the federal government regulations that have greatly expanded benefits to far more people than past decades, giving billions in benefits to poor people who could never possibly afford insurance before the ACA. By expanding benefits so wildly, healthcare has become far more expensive for everyone else and the bulk of it paid directly from taxes, which in turn spiked inflation. Obama lied when he claimed the ACA would expand benefits without raising costs- instead premiums tripled or quadrupled and funny money made up the rest, inflation just being another form of regressive taxation. As people with pre-existing conditions, the morbidly obese, poor people and illegal aliens who all would have not afforded coverage otherwise now flood emergency rooms, long waiting lines are the norm. Liberals scapegoat insurance CEOs for all these systemic issues even though profit margins have been cut in half, and eventually a guy who never contributed to society a day in his life committed an act of terrorism when he shot someone in the back and ran away like a coward, still managing to fuck up his attempt to hide from consequences.
And a third, social healthcare has been fought by these corporations for decades with billions of dollars behind them despite the will of the people being repeatedly polled as in favour of it.