In the first instance, even if you’re right and the manager thinks team lead is the problem here, it’s quite the leap to go straight to “questions his leadership qualities” over a single interpersonal conflict or difference in viewpoint. It’s plausible, sure. But the manager could just as easily be trying to avoid (needed) conflict.
To your second point, there’s MANY other explanations. We don’t know how the team reacted for a start - maybe they did back up OP. Or maybe, based on the alleged jerk’s aggressive behaviour to the team in the past, they felt scared to speak up. Or maybe they’re junior. Or maybe you’re right and all 9 people unanimously felt OP was in the wrong.
My point wasn’t any of this though, it was mainly: avoid coming to such harsh judgments based on so much extrapolation. Criticise the reported actions, sure, discuss some hypotheticals, but going straight for “you’re a bad leader” goes a bit beyond.
To your second point, there’s MANY other explanations. We don’t know how the team reacted for a start - maybe they did back up OP. Or maybe, based on the alleged jerk’s aggressive behaviour to the team in the past, they felt scared to speak up. Or maybe they’re junior. Or maybe you’re right and all 9 people unanimously felt OP was in the wrong.
My point wasn’t any of this though, it was mainly: avoid coming to such harsh judgments based on so much extrapolation. Criticise the reported actions, sure, discuss some hypotheticals, but going straight for “you’re a bad leader” goes a bit beyond.