From a policy standpoint this is an easy thing to say, however tens of millions of americans get a pretty sweet deal as a result of this. To change it you need to make losers out of them so you can make winners out of others. These games of winners and losers is what makes health policy making very very difficult and resistant to change.
Yes I've had various flavors of ACA insurance for the last 9 years. Family of 4. Most of the time you can get cost reductions via tax credits, unless your income is quite high. However you may live in a state which is hostile to the ACA. I suppose that does matter. In NY, OR, and VT it has been solid for us.
the average American cannot afford a sudden $500 expense. you think they can afford to pay for healthcare? plus the quality of coverage, while better than nothing, may still bankrupt them if they need something major
Note that if you are insured by your employer, you are still likely both paying a significant portion of the cost directly, and what your employer is paying is part of your compensation so that's money you would have in your pocket if your employer weren't insuring you.
It's not necessarily. If you live long enough you die of things like Alzheimer's or diabetes, chronic lived disease, e.g which are incredibly expensive.
Yeah I actually looked up whether preventive is cheaper, and while it may be in some cases not in all. It does sound overall BETTER though because it will result in better health outcomes. but the aging population is obviously a massive drain on medical costs and theres not much we can do