If you imprison an innocent, they can be freed. Execution takes away that possibility. And we have absolutely, provably, executed innocent people. I hope that never happens to you, but if life were a play, it would certainly make for some dramatic irony.
Romantic? Ffs…
Would you accept giving someone a choice between life in prison and death?
If you think prison’s worse than death for an innocent person, feel free to ask people who were exonerated after decades in prison if they’d rather have been killed.