Obamacare, like almost everything the government is in charge of, is undoubtedly a disaster and needs to be repealed. Why should it be replaced with anything? We already have an extensive Medicaid program, which was supposedly designed to provide a safety net for those unable to afford insurance. Like most if not all government programs, it is rife with fraud and abuses.
Medicare is another disaster. The majority of people think this is a free government program that pays 80% of everything. Nothing could be farther from the truth. Seniors pay for Medicare, and Medicare pays for 80% of what Medicare thinks you should have been billed. For example, if your doctor charges you $200 for an annual exam, Medicare might decide that you should have been charged only $100, and it will pay 80%, or $80, of that amount. The Medicare enrollee is left with a bill for $120. That's why almost all seniors have what is called "gap" insurance, a secondary insurance, which can be costly but pays most or all of the gap left between what you are billed and what Medicare pays. The same holds true for all medical testing and hospitalizations.
One of the popular narratives for replacing Obamacare is that so many people were uninsured before its passage and need to be insured. What I haven't heard is who these people are. I know that a good portion of them are young people who choose not to have health insurance. Since when did the government decide how a person should live his life? And should it?