I just said it can be hard to understand something if you are offended by it. In this case it seemed likely, because the obvious point was that different people have different preferences towards subjects and look down on others. For example, some people in tech have a disdain for literature or other "soft" subjects like the humanities.
When you complain about the stereotype and state that it obscures this point suggests that one could be offended by it and it is clouding their judgement. The fact that the OP simplified their point and you still refuse to understand it because it's a "made-up category" supports this notion.
But hey, maybe you aren't offended by the term "techbro". It's perfectly possible that you lack reading comprehension skills. It's also possible that you are being deliberately obtuse and disingenuous