no state should have the power to execute people

I would present a counterargument to that, as all states in the world ultimately have this power, only the circumstances differ. I mean, grab a gun and try to shoot at armed police anywhere in the world. You will be killed, and nobody can sue the state or the police who shot you for unjustly executing you. Killing you is always fair to protect other people from being killed.

From there, we are arguing whether states should be able to kill in cold blood, which is a different conversation, and my opinion is that we should keep making penalties for “financial crimes”, which usually kill more people than any mass shooter or serial killer could, harsher and harsher until there is a clearly visible deterrent effect.

The case of the lady in Vietnam is not even a direct “cold blood” case by the way, as the state agreed to spare her if she puts at least most of the money back, which means that lives lost because of the absence of that money might be spared. In my view, this is analogous to shooting at an active shooter, and an okay thing to do. Lives are being saved by doing this.