Debate is an academic extracurricular, not a form of social activism. If participants wanted to talk about the issues that are meaningful to their own lives or learn new perspectives about something that they care about, they could attend a social issues conference or a special workshop.
The point of debating is to be challenged with topics that you didn’t know or care about and learn how to use logic and emotion to prove a point. If an individual already cared a lot about a topic, they probably would’ve been discussing it all the time anyway, so there’s no point in having them discuss the same things at a debate tournament.
It isn’t a bad thing that sometimes participants are presented with issues and topics that don’t take up the headlines of mainstream media and don’t trend on Instagram and Twitter. Instead, they have to think beyond their typical comfort zone.