The hidden secret is the life - the oppressive discrimination - many minorities, especially black persons, have been experiencing for generations, without most white people being aware of it. When you take that red pill, when you are open to the facts, it is shocking what has been happening right under our noses. You can't unsee it. A simple suggestion: Just talk about it with people who are black; if you don't know many, you can see how the blue pill world is created.
> Woke in my experience is more used to describe progressive people and their opinions
Like any hot cultural term, it has become loaded with plenty of other meaning. However, to a degree I think you are talking about the reactionaries' use of the word, which they have adopted to politicize it - to use their endless (and successful) rhetorical technique of attacking the messenger; of saying 'it's just liberals' to shift the discussion from the actual problem, racism. For example, you can see the same technique used for climate change.