He is just claiming no evidence and cherry picking data. I can just as easily point to other countries that have limited their Covid cases to single digits. Do we really need a controlled experiment to prove to you that wearing masks limit the spread of an airborne virus? That is common sense.

Is putting a plague vector directly on your face with a virus that stays on surfaces for days common sense?

Is putting a device on your face that requires constantly interacting your hands near your respiratory tract common sense?

Everything that follows a cult's narrative is common sense, everything that disagrees with a cults narrative is immediately discarded.

Be aware of your biases.