Agreed, in the meantime, try finding work as (a) a translator (b) a junior programmer (c) a copywriter (d) a proofreader. And so on. There are so many job categories that are already feeling the impact of AI that I think it is wrong to focus on the plight of the mathematicians, I think their jobs are - for the most part anyway - still safe. It's the low end of the information processing where the real damage is.
Sure. I guess the reason some people don't feel so bad for the math folks is the people in those careers you highlight tend to not have the asset a math researcher has - a giant brain that is valuable outside their little world of math proofs.