Please put forward any scientific evidence against the below claims. I want to know if what I think is true or right really is.

People I've talked to in real life use very ignorant and outright stupid points (the average IQ here is 86) so I thought having an online discussion would be a good idea.

1. The jabs don't work, are killing a significant amount of people and giving a lot of them serious side effects.
2. COVID has less than a .1% mortality rate, it's a very mild disease and virtually all people fully recover.
3. Facemasks don't work and are a detriment to the health of the users.
4. Lockdowns don't work and the economic and social consequences represent a net loss.
5. PCR tests are useless.
6. Social distancing indoors is useless.
7. There are safe and effective prophylactic measures and treatments for the disease.
8. Natural immunity is far superior to jab-induced "immunity" against all variants.
9. Herd immunity should've and is the way to go.

I can share where I got these notions from if you want me to.