Always found this odd when class is the biggest workplace demarcation in the US.
Which is a very, very good proxy for diversity of experience and opinion.
It might be, but political affiliation, religion, and age would be equally good proxies. But these aspects rarely if at all get addressed.
Ask Brendon Eich, Douglas Crockford, Palmer Luckey, and Curtis Yarvin.
No it isn't. In fact, almost all of the "diverse" teams I see are a monoculture of opinion. They are all people who buy the standard SJW nonsense fully and hate anyone who doesn't. They actively try to stamp out diversity of opinion.
I can't wait to work in environment where we can have conflicts over these things instead of focusing on actual work.