Train wreck clearly doesn't mean what you think it means. After total national health care costs rose 0.5% per year in the decade before the ACA, as a percent of GDP, they rose by only 0.5% in the five years the ACA has been in place, a remarkable achievement when one considers that over 20M more people got health insurance.

Now for a train wreck, here's what the CBO estimates will happen with the killing off of the ACA:
1. Uninsured rising by 32M by 2026. Yes, that's 10% of America suddenly joining the ranks of the uninsured.
2. Individual policy premiums will double by 2016.

And the CBO ignores the consequences of losing the pre-existing condition coverage, loss of community rating and the reimposition of lifetime coverage caps. All this so that the top 0.1% can save a few thousand dollars in taxes.