The past year has been utter chaos, madness, and sadness for STEM in the US. I hope that Tao's grad students don't suffer from this too much in the immediate term. In the long term, all science is being harmed greatly, and we are causing a gigantic bubble in the pipeline of the production of scientists, most severely damaging those who are graduating soon.
It's ok, USA doesn't need mathematicians after the AGI is built. If you need to compute something just ask AGI. The subscription, of course, will cost you multiple lifetimes' worth of the minimum working wage (luckily you could take a credit that will be payed off by multiple generations of your descendants), but you know, the progress can't be stopped!
I'm really not too concerned about being replaced in the next couple months at least.