While I don’t agree with the author that climate change is the _only_ thing we should talk about, his premise that there are many issues and crises that compete for our attention is valid, and, further, his point that there needs to be a discussion about what to prioritize is a valid one as well.

Saying “oh you don’t suffer therefore you don’t have any right to tell people what to do!” is classic derailing and it is what the opposition has done with climate change for decades. I don’t doubt that you had good intent with your comment, though.