Well, I'm back. And while you may have a point, it seems pretty cut-and-dried.
1. She is not legally competant, therefore her closest next-of-kin is now responsible for her.
2. Since the husband is now the primary person to decide what is best, the parents have no legal standing.
3. Since she is in a vegetative (or autonomic) state, removing her means of life support- whether a feeding tube or respirator or whatever- can be done. The end result, whether considered ghastly or not, is the same.
4. The legal precedents for this have been long-established, and are relied upon by those of us still living to preclude our being a turnip for (up to) decades past where we're already dead.
5. The judicial system has upheld this (repeatedly), and all the "suspicions" and possible monetary or personal motivations are irrelevant.
Did I miss anything?