A recent study found that simple cheap 3-layer medical surgical masks protect the wearer surprisingly well, even if less than a FFP2 / N95 mask. I‘ll try to find the link. Non-medical cotton masks are indeed merely a limited protection for others.

New findings: A protective effect of regular mouthwash desinfective has been proven now - it had long been dismissed as useless. For a certain time after using it, you both spread less virus to others and even might decrease the virus load in your throat aleviating the infection if you gurgle often. Of course it can‘t stop the virus from replicating. Research coming from Bochum university.

https://news.rub.de/english/press-releas...us-transmission

Regarding the other issue, it shows again how people are „programmed“ to interprete everything according to the political friend-enemy patterns they have conditioned themselves into. A stupid tendency of splitting the society, these people don‘t see the world as it is but only the way their mind has already structured it...