The resistance to socialized healthcare in America can be easily understood without resorting to bizarre strawmen about hating poor people. Healthcare is of course a huge part of our economy and lives. Many (most?) people are satisfied with the status quo and are hesitant to see (what they consider to be) a huge increase in government power, spending, and general involvement in their lives. It's the same impulse that motivates people to oppose new housing -- people are loss averse and hate change.
Yes, the resistance is because the private sector will lose a lot of (parasitic) jobs. It's a non-starter to attempt to reduce health insurance companies power, because it would gut their employee numbers.
It's an unsavory thought, but the US has a significant amount of people employed in the business of denying healthcare to other people, which amounts to hundreds of thousands of jobs.
Any politician attempting to fix this would be committing political suicide.
We do not have an established history of accurately predicting or managing the costs of overwhelmingly expensive government programs, at least here in the US.
The US already runs two government healthcare programs. There are 65 million people in Medicare and 83 million in Medicaid. For less money per patient than private insurance.
