Amazon, Wallmart, McDonalds are notorious for pushing the cost of employees onto welfare and the rest of the population. Facebook doesn't seem as bad but clearly there are lingering issues around the widening wage gap, part time work, contracting and access to basic facilities like healthcare that reflect our societal values and need to be addressed as a whole.
Discrimination in access to facilities and making some employees feel they are some kind of lesser human beings is backward and regressive behavior. Google does this and so does facebook and no civilized society can accept this kind of behavior. I don't know how decision makers in SV companies come to agree to dehumanize some in this manner.
What kind of utopian future or 'better world' can these companies usher if they can't even get basics like human dignity right.