The real problem is increasing polarization of the Congress since Gingrich. We are going to keep flipping back and forth between Republican domination and Democrat domination rather than slight right majority and slight left majority with great debates and comprises until some key issues with the electoral process and congressional procedure are fixed.
I think the end result is an overhaul and optimization of government by sensible, human-oriented technologists but that is a few decades and several bitcoin bubbles away.
I don't see many people in SV culture claiming to value "diversity of thought". They value diversity of culture, races, sexual identities, etc. But not thought (unfortunately).
That said, other posters are 100% correct when they write that rural America is just as intolerant, only in the other direction. And you don't see many people moving to those areas and attacking their lack of thought diversity (probably because they'd get shunned, at best, or shot, at worst).
If someone is using "intolerance towards those who hold different opinions from oneself" as an insult, it only makes sense to assume they are claiming that they are different.
This is not exactly what "conservative thought" is, but the conflation does nicely demonstrate SV's toxic mix of ignorance and intolerance.
I've never seen much opposition to your run off the mill conservatism you find anywhere in the business world.
Economically SV may not be too far from the mainstream, because really, if you drive away not only Thiel but the rest of VCs, who's gonna throw millions on your new world-changing blockchain crowdsourced augmented-reality chat app?!
Socially, though, SV positions itself far, far left of not only mainstream, but even of the outer fringes of common sense. Which comes out quite ironic in the end, e.g. when you look at tyhe stuff in Damore's lawsuit (the ones still proceeding) vs. the fact that Google is simultaneously being sued for underpaying women.
What gets you in trouble here is talking about pro-life family values, personal responsibility, and how marginalized groups who are over/under represented in certain outcomes must deserve it.
There might be some diversity of economic matterts; depends on whether you make money on walking through the outer fringes of legality (e.g. AirBnB) or not. On social issues that you mention SV is far more of an echo chamber.
Although I do wonder where you're getting the idea about groups that "deserve it". Personal responsibility, vs. identity politics seems to be a rather large dividing line between liberals and conservatives, and "deserve it" as applied to groups is a liberal belief, not conservative.