Do you believe in anything else considered a "conspiracy theory" by the scientific or academic community? This is roughly the level of reasoning people use when arguing that 9/11 was an inside job.
The question of whether one of their viruses leaked out again (yes, again!) that was a bat coronavirus found right by the bat coronavirus lab, or whether it was a remarkable cascade of coincidences that still has no viable complete hypothesis (the “modified” virus doesn’t infect bats anymore), is not one of “conspiracy”.