It would be a conspiracy theory beyond belief to believe that on those subjects, the official story is completely true, while the evidence of innumerable other lies, both big and small, is so completely overwhelming for everything else. Look at anything, anything at all, the government claims and you will uncover lies if you dig just a little. Compulsive liars simply don't tell the truth on "big stories" while routinely lying about mundane things. To think they do is ... well, it just isn't rational.
But, on the other hand, none of those things makes any difference in how I relate to people who claim it is OK for them to steal, kidnap, attack, and murder people who have initiated no force, theft, or deception. It is simply a tiny bit more evidence that The State is a force for harm in civilization. The State is inexcusable.