It seems to me that there are two kinds of conspiracy theories which should not be conflated. On the one hand, there are theories which postulates a conspiracy

It seems to me that there are two kinds of conspiracy theories which should not be conflated. On the one hand, there are theories which postulates a conspiracy to explain the available evidence. Nothing wrong with that, sometimes that is the correct explanation. On the other hand, there are theories which invoke a conspiracy to invalidate the available evidence. Such theories are unfalsifiable, no evidence could possibly prove them wrong because all contrary evidence is just part of the conspiracy. This kind is problematic because its necessarily unhinged from any evidence or reality.