Pandemic Management bill. Health and well-being Act 2021.

[DJC]

Both extremes have a deep seeded belief that they are correct, know better, and are doing what they believe are in societies best interests using the same autocratic means.

The intention is quite irrelevant when you see it like that.  There are plenty of examples of socialism gone bad.

Star wars taught me a lot about this.  Balance in the force is required.  Too much of one just leads to a different set of people being discriminated against.

Extremists in any endeavour or field are often a threat to society's wellbeing.  I think that you may be overly generous in stating that political extremists' actions are motivated by society's best interests.  I reckon self-interest, self-preservation, ideology and cronyism are probably more likely motivators.