But this glosses over the undertones of the article - that is, the Obama campaign was able to attract these people precisely because the Democrats were more forward-thinking, more progressive, younger, and more open-minded. Are the Republicans capable of building this thing? Sure - but probably not with a lot of the same talent that has traditionally shared the same progressive views that the Democrats support.
There is plenty of top-grade politically-conservative technical talent in America.
Yes, Silicon Valley leans left in some ways, and politically conservative developers are outnumbered. The Democrats could probably pull together enough people for fifty top-quality campaign teams, while the Republicans could probably only manage five.
That said, the Democrats put together one top-quality campaign team while the Republicans put together zero - and those are the numbers that matter.
There's a large percentage of Silicon Valley that is at least fiscally conservative - if the Republicans would just soften up on social issues I imagine many of them would jump ship.