I'll give you the benefit of the doubt and assume you are in the UK and not SV to make a statement like that. The Bay Area is on the vanguard of the far left. SV companies range from far left, to left. Anyone vaguely center right pretends to be a libertarian otherwise they'd never get a job or invited to parties.

Realy? SV is in no way far left wing god only knows what you think I am :-)

If SV's so left wing where's the union branches and if its so far left why are not their UK office unionised :-)

If Google Fb ect want to come into the light let me know and I will have a word with the right people and have a branch sorted out before xmass - might help to have a friend if Jeremy wins the next election.

There are unions in SV:

http://www.mercurynews.com/2017/07/24/hundreds-of-facebook-c...

http://blog.sfgate.com/techchron/2015/02/23/facebook-bus-dri...

The USA as a whole is center right, which inhibits unionization, especially for privileged white collar groups, so you only see unionization for lower paid blue collar jobs in SV. It has very little to do with the local degree of leftism.

This might give a better indication of the way things are in SV:

http://money.cnn.com/2016/06/06/technology/crowdpac-donation...