They're just pandering to special interest groups --groups they believe will like this move, and since there is no alternative party in the Bay Area, they know most tech workers will not break Repub, so they can do what they want.

They still get the tech voter and now they will endear some small progressive cause.

But, yes, it's utterly incomprehensible. It's reductionist. Like I said before, ban Uber, ban MUNI, they are taking jobs away from Pedicabs and Taxi drivers...

Anyway, it's not Robots (yet) prepping food at the company canteen, they have to hire workers to do the cooking, serving, etc. So it's more or less a wash. Only diff is probably company cafeterias mostly try to ensure workers have a legal right to work in the US.