If you’re a liberal you oppose the idea of children being killed and starved in the abstract, because thinking of yourself as a moral person allows you to feel nice feelings about yourself, but you have no interest in taking a well-defined stand against the empire which routinely kills and starves children via genocides, wars of aggression, and siege warfare.
You don’t want families living in poverty because it would make you feel like a bad person if you did, but you also don’t take a concrete stand against the capitalist system whose very existence depends on the perpetual creation of poverty and scarcity.
You kinda-sorta want everyone to have happy and plentiful lives free from fear and tyranny, but you don’t want to consider the possibility that your own country is responsible for abusing, terrorizing and exploiting the global south. Because that would make you feel uncomfortable feelings.
It’s not about wanting to actually help humanity and fix the world’s problems, it’s about you and your feelings.