Your claim above was “AI will accelerate “natural” change in language like anything else.”
Now these are different claims, but I assumed you were backing up your parent’s claim. These are far stronger claims than what you write now, in a way that it feels like you are arguing in Motte and Bailey.
First of all if GP claim is true, linguists should be able to find evidence of that and publish their findings in a peer review papers. To my knowledge, they have not done that.
Second of all, your claim about AI “accelerating” changes in natural language is also unfounded, unless you really mean “like everything else”, in which case your claim is extremely weak to the point where it is a non-claim (meaning, you are not even wrong[1]).