This is quickly going to devolve into 'nobody suffers unless their suffering as at least as bad as the worst suffering that exists', so let's just go ahead and get that out of the way and move on to something less pointless.
It's not about being pointless, it's just plain wrong.
The median (not average) household income in the US is 80K USD. p25 is 40K. p10 is 20K. They're struggling, sure.
But I wouldn't call that abject poverty.
Have you looked up the definition of abject poverty? It is "the most severe and hopeless form of human deprivation". It's the subject of the conversation, how is that pointless?
GP could have just said "poverty" and the vast majority of unconstructive discussion that has followed could have been avoided.
Instead they said "abject poverty" as an emotional emphasizer, and people rightly called them out.