Again, we can look at what he is DOING or the lies he's telling us. I prefer to judge him on his ACTIONS, and not his series of broken promises. Repealing the ACA WILL END PREEXISTING CONDITION PROTECTIONS. That's just what will happen, the consequences of repealing ACA. Until he comes up with a plan he's promised for five years about how to solve the problem other than how ACA did it, only idiots and mouth breathing morons care about his empty promises.
It's difficult to protect those with pre-existing conditions. If we do that, there are trade-offs. You were whining about insurance premiums going up. Well, if insurers are forced to take on a bunch of previously uninsured cancer patients or diabetics or the obese or those with heart disease, their costs go up and so will premiums. The ACA dealt with that with the mandates - forcing everyone to GET insured to hopefully increase the pool of sick and healthy patients, to keep premiums at reasonable levels.
What's Trump's plan to deal with those issues? NOTHING.
He makes a bunch of promises, but doesn't tell us how he will get there. Those promises are worthless. Trump also promised to balance the budget and pay off the national debt in 8 years. Of course he had no plan to get there, and he signed a bunch of tax cuts that made deficits and the debt worse, but you want us to believe his lies. The first time around, people had an excuse. This time everyone but MAGA cultists know better.