Yes, there are people who want to see the whole thing into some massive false flag operation. I'm not sure how they reconcile that with the very clear statements Ron Paul has made about it. Ron Paul being duped about it, or being in on it, or lying about it (take your pick) seems even less likely than the bizarre claims some made about holographic planes and disintegration rays.
I think it's safe to say that you can agree with what Ron Paul has said about it and be on solid ground. So can we start there?
But about WTC 7. Ron Paul used the word "suspicious." It's a question that can be asked completely separately. As a structural engineer you could be helpful in exploring those questions, but not if you're going to insist on lumping questions about WTC 7 in with other things that some people try to roll it up with.