Lots of folks in tech have different opinions than you may expect. Many will either keep quiet or play along to keep the peace/team cohesion, but you really never know if they actually agree deep down.
Their career, livelihoods, ability to support their families, etc. are ultimately on the line, so they'll pay lip service if they have to. Consider it part of the job at that point; personal beliefs are often left at the door.
Not just tech. I spent some time on a cattle ranch (long story) and got to know some people pretty well. Quite a few confided interests and opinions they would never share at work, where the culture also has strong expectations of conformity.
