I Reject Obamacare

There are some who are too poor to afford to buy health insurance on their own who are also not sophisticated enough to figure out how to take advantage of the premium tax credit. The current law says those people need to be fined / "taxed". Who does that make sense to? Repealing the "individual mandate" should be the very least Congress does to fix the whole Obamacare mess. Why are people against that?