65 percent of "us" weren't around in the 60's. Or were just toddlers.
No, some researchers decided that 65% of those they experimented on were likely to kill someone on orders. I doubt much else was "proven."
Yes, that is the biggest problem with all psychology experiments; they’re all performed on the same people - young western college students. And then the researcher tries to generalize what he’s learned about that demographic as if it necessarily applied to all demographics.