The questionable views we’re talking about here are… Let’s just say we’re not talking about milquetoast stuff like “we should be a bit stricter with immigration” or “lower taxes on the rich”, but views that are far, far outside of the mainstream in most places in the world.
There are plenty of people who are smart with tech and engineering but not very smart with people, society and politics. And these people sometimes develop a tendency to see all society’s messiness and difficulties as engineering problems to be fixed. If you’re looking at it that way, it’s easy to become either a tankie or a fascist, because both offer neat engineering solutions that promise to make life work cleanly.