There's a difference between "mask mandates aren't making a difference" and "masks aren't effective." Take a look at Japan, where the government has done fuck all to deal with the virus, but people wear their masks.
OK: ” A record 7,841 new coronavirus cases were reported in Japan as of 8 p.m. on Friday. The nationwide daily tally has set a record for a fourth day in a row.”
OK: ” A record 7,841 new coronavirus cases were reported in Japan as of 8 p.m. on Friday. The nationwide daily tally has set a record for a fourth day in a row.”
https://www3.nhk.or.jp/nhkworld/en/news/20210108_40/
That’s some fantastic evidence that masks don’t work.