Nighthawk, one thing for sure is, someone calling their struggle doesn't diminished yours.
Any struggle is a struggle, you can't put them on a scale.
However, human sharing common struggles like to connect together, because, for me, it helps me not feel alone within my ecosystem.
I.e. I will never be able to understand truly, I can empathize, but understand truly what it is like to go through loosing your kid, I'm not a parent, I will never be able to understand that. Clearly a struggle, clearly parents that went through the same thing connecting is a powerful thing for them to share and a way to cope and be better on the other side.
Again, people wanting to connect around who they are, part of their identity or their struggle is not a matter of exclusion, but a matter of survival, coping, celebrating whatever they need, that can emerge from that specific group of peers that walked their shoes as well.