Unlike everything else labeled with the C word, the fact that the FBI has entrapped people for terrorism is well-documented, which is what we expect to see if there is a large group of people doing this. On the other hand, if you claim a large group of government workers are doing something illegal and have no evidence to support your claim, of course it will be labeled a conspiracy theory.
https://www.pbs.org/wgbh/frontline/article/fbi-sting-operati...