I’m not a huge fan of the death penalty myself but I don’t see a meaningful difference between the death penalty and life imprisonment. I’m quite confident that there are far more frequent errors in incarceration with life imprisonment than with the death penalty. Just seems like bikeshedding to focus on a thing that can have at max 18 errors a year.
So you are OK with a a few mistakes, as opposed to many?
Point is also that it is possible that a mistake will be made. We know wrongful convictions have occurred, including for those on death row.