True, but there are many more people that speak no English, or so badly that an article would be hard to understand. I face this problem now with the classes I teach. It's an electronics lab for physics majors. They have to write reports about the experiments they are doing. For a large fraction, this task is extraordinary hard not because of the physics, but because of writing in English. So for those, LLMs can be a gift from heaven. On the other hand, how do I make sure that the text is not fully LLM generated? If anyone has ideas, I'm all ears.

I don't have any ideas to help you there. I was a TA in a university, but that was before ChatGPT, and it was an expectation to provide answers in English. For non-native English speakers, one of the big reasons to attend an English-speaking university was to get the experience in speaking and reading English.

But I also think it's a different thing entirely. It's different being the sole reader of text produced by your students (with responsibility to read the text) compared to being someone using the internet choosing what to read.