I haven't read The Handmaid's Tale, and I think the form of execution as used there, is, as other's have said, probably a way to kill men who are falsely convicted and to control the handmaidens. So no, I wouldn't be interested in that.
I'm also reluctant to give the state the ability to kill people.
But I do think it's ridiculous when people try to say that killing a sex offender, paedophile, or serial killer makes us 'just as bad'. No, no, it really doesn't. Ridding the world of a sadist who has caused untold pain and suffering, and would continue to do so if possible, is not the same thing at all as what they've done.
Is a woman who kills her rapist in vengeance just as bad as the rapist? Or is a woman who kills her domestically abusive husband just as bad as him? Is that what we're saying now? That to end the man who, for his own sadistic pleasure, tried to emotionally and mentally destroy you, makes you just as bad as him?
That's a disgusting take, imo, to say a victim lashing out at her violator at any point, is 'just as bad' as the violator who abused her in the first place. How can you say that and consider yourself a feminist?
Ultimately, if issues with the state wrongly convicting people out of corrupt reasons, or human error, were somehow magically solved, then I would happily personally execute every sex offender who was convicted. I'd rather not beat their heads in (gross) but I'd feel no qualms about shooting them in the head at close range, for instance. The job satisfaction would be immense.