What 'techies go home' means, or how to be a xenophobic racist young liberal person without getting in trouble

 I see a lot of 'techies go home' stickers in Seattle. They're meant to be from this edgy ultra-liberal young hipsters who don't like how their city is being 'sold out' but it's pretty clear it's actually from privileged rich (white) assholes who don't like the fact that people of South Asian and East Asian origin have 'invaded' their dear homeland and have made it their home as well and are doing much better than they ever did, even though they own all the property and political power still. We understand what is unsaid, assholes, the dogwhistle is not silent enough.