I don't see giving spammers, marketers and scammers more powerful tools as the ethical stance.
The bad guys get it anyway so this gives the good guys a chance.
I agree with you. Ethics doesn't demand that existing private tech be made available. Who's saying that??
OpenAI is just catching shade because their initial founding mission was to democratize access to AI tech and they've gone pretty far the other way.
It is like: you can not talk to your kids about drugs and pretend they don't exist ... or you can.