Question

Hello,
I went innocently to a completely mainstream hesder yeshiva in order to study Torah and be a good Jew.
The various rabbis, besides teaching “Torah” (looking back, I’m not even sure it should be called Torah, given how low the level was), also planted in our heads all kinds of Haredi and even extreme Haredi “practices,” and said that this is how one should act, this is proper, this is what a Torah student is, and so on and so on.
Looking back after finishing yeshiva, it seems to me like a total waste of more than 3 years, a huge step backward, and a “process” in which they simply shrink your consciousness enormously, educate you into all kinds of oddities, call those things “righteousness,” and drill into you that normal and healthy things are bad, harmful, damaging, and that you can’t progress with them, and so on and so on.
There were many things there similar to the Rabbi’s article about Har Hamor, but I didn’t go to a yeshiva like that; I went to one that is considered completely “regular” Religious Zionist.
My question is: how can it be that no rabbi I ever had in my high school yeshiva, and no other figure from the place where I studied (for example, a subject teacher, counselor, or other staff member), or just anyone else in my life / Sabbath pamphlets / newspapers / TV investigations / other information sources of any kind, warned about this? I studied and lived in places considered open, and I’m open to different kinds of media and to the news.
How was I supposed to know that I was entering a cult with a very low educational level, with rabbis who serve as classroom teachers for a full year and who are, in my opinion, at a very, very low level in many respects, and who really shouldn’t be in any educational role of any kind, who “educate” you into all kinds of strange “practices” from the Haredi world and tell you that if you don’t do them you won’t progress, and all sorts of things like that, along with many other very bad things? 
I had no tools to examine these things at age 18. I never imagined that such yeshivot were a kind of cult, full of so much emptiness, futility, and all kinds of bizarre obsessions, and I didn’t think of leaving in the middle because I didn’t even know whether that was possible with the army and other things.
There is general awareness that the Haredi sector is problematic (I’m speaking in generalizations right now, and I know that in recent years the situation is better, but generally speaking—) they don’t serve in the army, don’t work, wear only black and white, and all the other various things. But I was never aware that even in yeshivot considered regular Religious Zionist ones there is a lot of Haredi influence, and even extreme Haredi influence disguised as Religious Zionist.
How has this situation continued for decades, and why don’t various people raise awareness of it so that it will be something well known and young boys will know to be careful and guard themselves?