Yes, it is. I don’t disagree with thetreesaysbark and you on that.
However I think that a circlejerk formed by similar-minded individuals gathering into the same place is far, far more benign than your “typical” circlejerk revolving around social pressure.
Also, let us [humans in general] not fool ourselves into believing that circlejerks are avoidable. Humanity boils down to “circlejerking hairless chimps” anyway.