Debugging your below points:
1. The unvaccinated are gambling with their lives, even the younger ones.
2. If you’re going to wear masks, get KN95 or N95 — they are much more effective.
For point 1, it is better to show how many under 40's are getting serious or dead due to corona virus. Natural infection works equally better. Vaccination if at all needed, need to be more focused like giving it only to those immune compromised or elderly.
For point 2, I agree that some protection is always better than no protection but still even N95 can't 100 percent filter the virus. It requires just 10 virions to enter and multiply into millions. Thus it is better to avoid crowds, closed spaces and close contact.
Thus self protection is the best protection as given in the article below