It's perhaps great in the short term although it's not very clear who it's great for. I'm not sure mathematicians find it all so great, I mean.
In the long term, if this contrives to destroy the tradition of human mathematics the whole endeavour is self-defeating. In time, there will be nobody left with the knowledge and skills to produce mathematics to train AI to do mathematics.
And then we'll be left with no mathematics at all: we'll have no human mathematicians and no AI that can do mathematics, either.
I don't know what you should do because I'm not a mathematician. But superintelligence schmuperintelligence. We didn't stop running because we have cars or playing chess or Go because there's chess and Go engines. Even more so than chess there's no point in maths unless it's people doing it, for other people. AI maths makes no sense, like AI art makes no sense, because those are things that people enjoy and can do pretty damn well ourselves so there's no point to automate them away. We gotta stop that bullshit, and we can stop it. And if we don't, if we just sit around and wait for OpenAI and Anthropic to destroy society then that's not their fault but ours.
Sorry, I'm not great at pep talks. Those are brave men. Let's go kill them!
If this is not possible it does make me question whether mathematics ever had any value except for economic or industrial reasons. I do believe it does however, so it must be possible.