persons that will always endanger other people and that includes killing them.
You cannot know that, and if you have the ability to strap someone down and end their life, you have no need to do so since you clearly have complete control over their person.
I’m OK with the death penalty only in principle
You shouldn't be. States qua arbiters of justice should not intentionally kill people under their control.
Well then. Murdering someone as ex-post "punishment" for past actions remains abhorrent, but holding a gun to her head until she gives the money back is cool and good.
There is a difference between threatening violence as a deterrent against currently engaged in harms a person has the ability to cease and claiming moral authority to end a person's life due to things they have no control over.
There's distinction between "Put down the box or we'll shoot you." and "Having touched the box in the past, you now need to die regardless."
Still don't fuck with "The death penalty" as a framework for the threat, however.
I already did, and I don't feel you are arguing in good enough faith—having been willing to concede being trans "is sinful"—to address you in any deeper detail.
You jump on the name thing rather than seeing it as an outcrop of assigning sex and gender and then bitch about it in other threads using disingenuous descriptions that conflate the two but only address the later.