It won't be repealed. Under the Roberts Court, it is settled law. In addition, any attempt to defund Obamacare, using the debt ceiling as a hostage, or threatening to shut down the government. will end up destroying the Republican party, since a vast majority of people are now in favor of it. The more moderate faction of the Republican party sees this, and will undermine any attempt by the Tea Party faction to carry this out. Thus, any attempt at this will fail in the House.
Obamacare? It's a mixed bag. Having the Federal government dictate our health care is a repugnant idea, but what is the alternative? Emergency rooms? Do you have any idea how much THAT costs the taxpayers? At least, with the individual mandate, the taxpayers will be recovering some of what they lose when people go to emergency room, and then not pay for the visit.
Here is what I would like to see. What would YOU advocate as a replacement for Obamacare, would it be a better option, and how?