It sounds so easy, it is not. Sure, the GOP says they will protect people with pre-existing conditions and that sounds great. But look deeper into how they're going to manage to do that and still make health care affordable. They will likely do something that technically preserves it, but practically destroys it.
The Republicans will protect pre-existing conditions in that insurance companies will have to offer insurance to everyone. The insurance companies may, however, charge more for it, with life time limits, and a lot of deductibles. In such a scenario, no one would be denied health insurance even with a pre-existing condition but allows the insurance company the ability to price it so high that very few other than the financially well-to-do upper middle class will be able to afford it. This way, they can tell the inattentive public they kept their promise, while serving the insurance industry in lining their wallets. It’s a win win! (and lose, for those who are ill).
One republican plan is to keep raising the cost of medicare (plan B), according to milestones of age, so that by the time a person reaches 80 years old, plan B (taken out of the social security benefit). will cost more than the “entitlement” being received. That will force people who can’t afford it any more, to have everything they own confiscated to cover their insurance, and tax debts. Then they will become “wards of the state,” not the federal government.
As I've said, it's simplifying a deeply complex problem on how to provide health care for everyone, and not exclude people with long term illness or pre-existing conditions. Whenever government 'gives' something, there's something else that gets taken away.