Before the Avengers could snap back to reality (stone), Thanos went and removed half the population of *checks notes* everything. We don't know if this included bacteria, possibly causing the deaths of trillions more as they grip their stomachs and think, "Man, last night's takeout is doing a real number on my OHGAWD". We don't know yet if Ant-Man can truly climb inside the basement end of the Mad Titan and blow him up from the inside like that very same box of takeout. What we do know, however, is real-world audiences were torn about his motives.
Surely, every great villain has an empathetic view of society. They just tend to take a few shortcuts/infinity stones to get there. What made the viewpoint of Thanos so interesting was the severity, and the impact, of his choices. On his own planet, he witnessed overcrowding and tyranny, and eventually the death of his people. Had they only listened to his ideas, then maybe Titan would still be kicking out little baby Lavender Bois. This concept is instantly relevant to many struggles humanity burdens today. We grow far too quickly, and are unable to safely control it without challenging our core ethics. This isn't an easy problem to solve, and we lack the means and, thankfully, the kind of heart necessary to allow this genocide to happen. Still, we must shoulder our burdens.
Joe Brueggemeyer hosts and edits The Marquee podcast with Logan, and has an unhealthy obsession with baking.