Sweden did not achieve herd immunity and is a cautionary tale to avoid, not an example to emulate.
Let your plans be dark and impenetrable as night, and when you move, fall like a thunderbolt. - Sun-Tzu, The Art of War
Same pandemic, different week - cases are setting records, positivity is worse than it's been since early May, hospitalizations are about to exceed their peak from April, and deaths are rising too.
Everything is up and looking to continue to go up until Coloradans take the pandemic seriously again. Which may be only after Governor Polis is forced to impose a second statewide lockdown.
It is entirely reasonable that the same control measures (masks, distancing, et al) that are failing to control COVID-19 could be controlling influenza well. The devil is in the details.
The government is not some outside force trying to destroy "real" America - it's our family, friends, and neighbors.
Anti-maskers and COVID-hoaxers are claiming that a small CDC study published in September proves masks don't work. The study very nearly finds the opposite.
New cases are setting new records. Test positivity is over 5% again. New hospitalizations are clearly up and the trend goes back to just after schools statewide went back to in-person learning. And new deaths are starting to increase and will continue to do so until all Coloradans take the pandemic seriously.