The argument is rarely that their lives are worse, it's that they're somehow making other people's lives worse by not paying attention to X, Y, or Z injustice. But even that argument doesn't really hold water.

I know people who are so incapacitated by their anger, frustration, and sadness about the Gaza war that they spiral into depression and are incapable of making any impact on the world directly around them. In their own words, they say that they have a hard time seeing how anything they do locally really matters when such terrible things are happening elsewhere. Their excessive amount of care about things outside of their control has actively hampered their ability to care about things that they actually can influence.