I've said it before (including above), reducing Natasha's sacrifice to the "another dead woman" meme kind of cheapens her sacrifice, and her agency in it. I also don't think motivation was an issue, since the disappearance of 3.5 billion people is what sent everyone out there to collect the stones in the first place.

But yeah, I hated her death and am working on fixing it in fic, but at the same time for me it made sense and honoured her character.