The question is difficult to mention in a single line as a title, hence feel free to edit the title.
Person-1: Did Brazil win the football match today?
Person-2: People are dying across the world, economies are going down, Earth is burning and you are asking about a match?
Here "Person-1" is asking a good and valid question which interests him/her. However "Person-2" doesn't think that such questions are important when there are other major questions yet to be solved.
What is the term used for such sarcasm?