The problem is you're assuming that people will find it distasteful and regret watching it, because that's how a person with empathy and a conscience would feel. But the people who watch this won't be turned off by it, they'll revel in it. It will stoke their bloodlust. They're incapable of empathizing with this person or whoever ends up being executed, because that person is THE ENEMY and the TV and government told them so. THE ENEMY isn't human, they can't be empathized with, THE ENEMY is terrifying and evil and needs to be destroyed at all costs. And it doesn't matter if the TV and government keep redefining who THE ENEMY is, as long as THE ENEMY isn't them, they'll keep supporting the annihilation of THE ENEMY. These people can't extrapolate information, or understand that they're not safe relying on the whims of an aggressive childlike tyrant. That's why there are so many leopardsatemyface type people who are SHOCKED that trump et al would turn against them. And the ones he still hasn't fucked over never learn, they just assume it could never happen to them.