I do not find it useful at all to try to list out the views that are not tolerated as there is no way that you can reduce a huge population groups opinions into neat categories, people can hold both conservative and liberal opinions as well as everything outside those at the same time, and I believe doing so would distract from the real conversation which is the intolerance.
There are also plenty of leaked examples of how people with other opinions are treated to even shock me that generally agree with the predominant view, and I encourage you to look it up and form your own opinion. I also think people like Tim Ferris and several in the YC leadership amongst others have made salient points on how Silicon Valley has become intolerant of anything but the predominant views, and how it is hurting our competitiveness.