"good treatment"???
They are being mentally enslaved, this is worse than torture imho
They are being mentally enslaved, this is worse than torture imho
They already turned themselves into freakish animal hybrids voluntarily.
Yes living a happy life under a kind master, after literally enslaving, killing and starving a large population is better than these violent evil chimera deserve.
If you are saying you as a violent invasion force would rather live under the power of Sugar for the rest of your life than Tama because at least you'd "be your evil self" even if you'd be happier under Tama's power, then too bad, don't put someone in a self defense situation by taking away their rights.
It's like a violent rapist pedophile complaining that they got chemically castrated rather than killed, those are the two options in a low resource environment like Wano where you do not have the luxury to give your previous invader/torturers 3 square meals a day and tv break in prison. Tama is a kind master at least.