I would have no problem if such AI systems are also completely open source, can be run by me on my system and come with all models to use them also easily available (again in some form of opensource license). I genuinely don't see that happening in the future with BigTech. As such, as a proponent of FSF GPL philosophy, I have no interest in supporting such systems with my hard work, my source code. So yes, I do consider it stealing - my hard labour in any GPL opensource work is meant for the public good (for example, to preserve our right to repair by ensuring the source code is always available through the GPL license). Any corporate that uses my work, for profit, without either paying me or blocking the public good that I am trying for is simply exploiting me and the goodwill of others like me.