9/11 was a conspiracy though. It's blatantly obvious. And the most of who defend 9/11 conspiracy theories come from western countries. The proof given by US is very questionable and flimsy and is at best acceptable to people who believe it just because US government said it. It's obvious that a plane did not crash at the Pentagon. A few small pieces of steel is not enough evidence. WTC was clearly brought down by controlled explosion as you can see small bombs going off when you zoom in to the video. Some people knowing how to fly paper airplanes are not gonna fly jumbo jets so accurately on their first flight. The article on popular mechanics that many official story defenders use has some inconsistencies and unreasonable explanations. You just need to do some critical thinking to realize this for yourself. You shouldn't even be need to be told that 9/11 was a conspiracy if you could do that critical thinking. The problem is many people want to believe in this stuff, so they use whatever half-cooked, inconsistent, unreasonable, fabricated evidence that the US government provides.
As far as holocaust goes, you clearly didn't watch the video. It explains how the jews died and the reasons why they died. It wasn't deliberate killings.
And again, like I mentioned, just calling these stories "conspiracy theories" doesn't counter or rebutt them. If you don't care about countering or rebutting them, just don't reply to them.