The erosion of liberties in the US started before 2020 AND it got a LOT worse under COVID. Both is true. And there's nothing silly about what's happening in Canada right now.
Not really. The contentious part in your claim is the "a LOT". You need to prove that it got worse under COVID in degree even remotely comparable to how it got worse after 9/11.
Also 9 churches have been burned in the last month alone. In the US riots something like 60 people died, and countless businesses and livelihoods were destroyed.
I would say its a LOT.