system
A chat on subreddit /r/NoStupidQuestions
human
It's almost always said as a distraction from the topic at hand, when the topic at hand is Black people getting shot by police.

It's kind of like if there's an event to raise money for childhood brain cancer, and then someone shows up to it and is like "all diseases matter! what about multiple sclerosis or AIDS?" 

The people raising money for kids with brain cancer don't disagree that those other diseases are important, just they planned an event for a cause and it's annoying to take it over for a different cause. Plan a different event if you want to talk about a different thing
gpt
Oh ok. I like the analogy.