This principle only applies when the activity is spurious, negative, hostile, or illegal. Whenever progressives accuse patriots of nefarious activity it is an absolute cast-in-concrete certainty the progressive is doing precisely what they are accusing patriots of doing.
The very best illustration of this truism is progressive accusations that President Trump is consorting with Russians. Countless records prove the Obama administration is in lock-step with the Russian oligarchy and has been since Obama’s election.