I argue that a life sentence is only marginally better than a death sentence. I further argue that if we oppose the death penalty on the grounds that it causes substantial irreversible damage, then we must also oppose perpetual incarceration because the difference in harm is not large enough (IMHO). I, and many others, are not willing to do away with perpetual incarceration so this is not a satisfactory line of argumentation.
From there, I reach my point: there are other, more compelling arguments against the death penalty.
I'll say the same thing to you as the other guy: you're making assumptions about my position relative to capital punishment.
If you're going to call people disgusting, at least make a good-faith effort to understand what they're saying.