Silicon Valley is where the Tech Industry basically has its headquarters. Many of the companies here (Facebook, Google, Twitter, etc) are pushing for Amnesty.
Whether you support Amnesty or not, their reason for doing this ISN'T for anything related to illegal immigrants, but as a way to get H18 forms easier in order to get more foreign labor.
In short, those in the IT industry and left jobless while they try and find a way to get more foreigners in for cheaper. Basically, they could care less about immigrants anyway, but they want $$$$$$ and could care less about immigrants, or, indeed, our own citizens.
I am in IT and refuse to work for these cheapskates. (Not that they'd want a conservative that is against many of their liberal agendas and also, I'm not cheap labor from Asia.)
I don't have an issue with getting money and even being a millionaire or billionaire. I don't like them posing as being noble and pulling nasty stunts like this.
What they really want is power, control, and money.
Note, a boycott of Silicon Valley sadly isn't practical as they make a lot of the leading social networks and computer prodcuts. However, we can surely give them our voices and our outrage over this.