Have a look at the Quebec graph: [1]
In just 7 days, Quebec has gone from 'mid-low' levels and hopeful for a normal Xmas with Delta 'mostly going away' ...
... to a massive spike, the most daily cases ever seen during this pandemic, absolutely no definitive evidence that Omicron is somehow less lethal, and of course knowing that thousands have died from this already, and aware of the likely consequences?
Imagine having just a meagre bit of insight, knowing how those numbers relate to Hospital beds (they track that very closely), and that within just 1 more week, you're going to be totally overwhelmed?
Imagine being person with actual responsibility like a Politician, Health Advisor, or even Dean, major CEO, Provincial/City Official knowing that your failure to act will probably cause death?
It is what it is, we have to deal with it.
Closing gyms and cinemas for a few weeks while Omicron crashes through (and FYI Xmas season where people tend to gather) is a relatively small price to pay.