Logically, one can't support the proposed scenario until and unless he also support the right to commit suicide.
Which I do. But this scenario is way too close to war for confort. War, of course, is by definition a moral abomination, while suicide is legitimate at least under some circunstances.
So I guess I would use the practical justifications for tolerating the existence of wars as a guideline. If I can be convinced that the impact of their deaths and/or serious injury on other people is somewhat tolerable and that they are both way too crippled for healthy alternatives to work, maybe then I could grudgingly accept that they have a right to make destructive fools of themselves.
Which I do. But this scenario is way too close to war for confort. War, of course, is by definition a moral abomination, while suicide is legitimate at least under some circunstances.
So I guess I would use the practical justifications for tolerating the existence of wars as a guideline. If I can be convinced that the impact of their deaths and/or serious injury on other people is somewhat tolerable and that they are both way too crippled for healthy alternatives to work, maybe then I could grudgingly accept that they have a right to make destructive fools of themselves.