All that sacrifice and the answer was always there. Kill Vision. They were willing to sacrifice half of all the worlds for one robot. There were other stupidities as well. Just found it to be one of those odd loopholes. Quill was the worst one I think.
The driving force of most every Greek tragedy is the tragic flaw of hubris - the ‘hero’ thinking he’s more powerful/smarter than the gods
From Civil War on, the 2 main dramatic tensions was ‘I’m right’ and ‘I can punch my way out of this mess’