I keep seeing that argument. Apparently it's ableism to ask people to think for themselves or something, or at least it is according to these folks. It's always hypothetical too! They rarely have an example of how someone COULDN'T come up with their own games or do the labor of thought themselves that isn't borderline at best. It's gap in several arguments, like how we want people with something like Chronic Fatigue Syndrome to not suffer from something outside of their control but we also don't want people becoming the citizenry of the space ship on Wall-E. And all of that is alongside whether or not these generative tools are even good enough to justify throwing away a huge chunk of human endeavor for.
You're forced to ask what it is we really want out of life: perfect convenience at the cost of our agency or agency and striving but also some degree of inequality.