Why's it so difficult for some to accept Obama was a good president

[Crunchy]

Excuse me I have insurance and I think people should have insurance. What I am saying is that the government shouldn't enforce it. It's not the government's job to police what we do to our own bodies.

In this case, it is the governments job to ensure that irresponsible people do not download their own costs onto the rest of society. This is why auto insurance is compulsory. You have a car, you have to have car insurance. If you have a body, then you should have to have health insurance for the same reason. 

People know that even with no insurance they will be cared for in an emergency room. Sure, some say "let 'em die" but the reality is that will never happen. They will get hospital care that you will ultimately pay for. These people ride the system for free. Everyone will use the health care system at some point in their lives. That is the reason CONSERVATIVES have supported mandates like Obamacare.  They supported mandates until a black liberal proposed the same thing, which is why they're  now against what they have previously been in favor of.
There are also other ways in which people's health costs are downloaded onto others when they are uninsured. For example, medical bills are the biggest cause of bankruptcies in the US. Others besides the sick get shafted by this. 
The situation is actually extremely complex as there are other considerations and costs to a society that does not insure everyone's health. I don't want to write a book so I'll just leave off here. 

Personally, I don't support systems like Obamacare either. Universal health care is the only way to go and the most efficient method is single payer. There are other creative solutions out there as in Singapore so I would not be closed to hearing any other proposals as long as they cover every single citizen.