Culturally though, people do for the most part. Whites hangout with Whites, Indians with Indians, Chinese with Chinese, etc.. it's not racism, it's human nature.
Yea, that is true. But it’s not something you will be happy assuming about other people.
Fwiw I mostly don’t get alone with people that look like me; this mostly ends up with me being quietly alone so i don’t offend anyone.
Unless, of course, they don't. :) I can't stand talking shop outside of work. Silicon valley and San Francisco are so full of technologists and associated ancillary professions it's a pretty miserable place to live--they've displaced all the people I'd normally want to be around.
Not that I have much choice on where to work or live! I work in technology, so why would I want to live anywhere else? Just shut up and move to SF already, you'll love it!