Trigger Warning: I do not know you so this isn't a personal attack
You seem like a very arrogant person if you applied to literally every single highest ranked school you could have with only a 508 MCAT. Seriously Harvard, Hopkins, Yale, UPenn, WashU, Mayo etc.. with a 508. What did your research involved, did you make any massive discoveries or win any major rewards? Something is majorly missing from your app if you applied to almost only the very top US MD schools.
I have a feeling this is a troll...