If "extremism" gets banned, then individuals are incentivized to get things they don't like labeled as extremism.
We wouldn't be having this conversation if the things labeled extremism and thus banned from platforms was limited to ISIS and literal Nazis. It's been far more far-reaching than that. That's probably due to the incentives, not due to actual extremism.
So if extremism is subjective, it will be leveraged in that manner and you can't stop that behavior without removing the incentive. That's the point, not what is or isn't labeled as extremism today, that's just dragging the conversation back into the political gutter.
We wouldn't be having this conversation if the things labeled extremism and thus banned from platforms was limited to ISIS and literal Nazis. It's been far more far-reaching than that. That's probably due to the incentives, not due to actual extremism.
So if extremism is subjective, it will be leveraged in that manner and you can't stop that behavior without removing the incentive. That's the point, not what is or isn't labeled as extremism today, that's just dragging the conversation back into the political gutter.