You can suspect 9/11 was an inside job and on the other hand you can consider SH to lack sufficient evidence and be a quote unquote conspiracy theory. You seem to be lumping theories together. Not even alternative theory is plausible and the term conspiracy theory is misleading
Silence, I don't blame you for wanting to remain a "sheep" as you call yourself. It's probably a lot better for your mental health. But I don't think you can dismiss conspiracy "theories" simply because of your assumption that someone would have come forward. For one thing, whistleblowers have come forward with respect to a number of questionable official narratives -- including 9/11 and the Oklahoma City bombing -- but they are often marginalized or silenced in some way. And in my opinion, those who want to believe the official narrative will dismiss them easily as not credible, as going against the weight of the evidence, etc. even if they HAD a smoking gun. (incidentally, I don't think a smoking gun is necessary in most cases. Instead, you just have pile upon pile of unlikely coincidences and improbabilities until finally the official story collapses of its own unsupportable weight).
In addition, sometimes it takes a long time for the truth to out. As we all know now, the Gulf of Tonkin incident was a complete fabrication. But how long did it take for that to get out to the general consciousness - and how many people would have believed a "conspiracy theorist" speaking that truth at the time it supposedly happened? Not many, since we rabidly and collectively believed "our boys" had been attacked and we were then conditioned for blood retaliation. What about other operations that went against the average citizen but weren't revealed until much later, like Operation Gladio or Operation Mockingbird? As we now know, these are not conspiracy "theories" anymore.
But I am curious about your participation in a Conspiracy Theory thread then if you see no value in researching conspiracy theories? Is it that you are open to them but have not yet found convincing enough evidence? Or are you just trying to convince those of us who do believe in (some of) them that we are wasting our time? I genuinely mean no disrespect in calling you out here (nor do I want you to leave) -- I'm just curious about what you are getting here of value, because most of my friends/ family who reject 9/11 Truth and have no interest in looking into/discussing it wouldn't be caught dead here.