Unpopular opinion, maybe, but I have a real problem with the "turn down the temperature" on political debate line being taken.
Obviously we should generally be kind and respectful and treat each other as human beings, but my two major issues are these:
First, the guy who attacked Haines appears to be a genuinely mentally ill lunatic and to the extent he may have latched on to heated political rhetoric, it was almost certainly downstream of being mentally ill. You simply cannot have a functioning democracy if debate is hamstrung because someone somewhere might have a psychotic break and decide a normal throwaway line like "we're coming for Albo" means violence and not voting him out.
Second, people who say this mean YOU should turn down the temperature, not them. YOU should turn down the temperature if you're worried about immigration or upset about tax changes or skeptical about this digital duty of care stuff. They absolutely will not turn down the temperature on calling you a racist for opposing the Voice or a misogynist because you think we shouldn't treat young men like defective women or whatever else they think is out of bounds.