1) No one is claiming that it is.The 10% efficacy of a mask, if the protection is even that high with a cloth mask on a child against the Delta variant which new research is casting doubt on, is not the equivalent of a 95%+ efficacy vaccine.
2) There is a very large degree of overlap between the anti-maskers and the anti-vaxxers.
3) Removing mask requirements does not mean these people will get vaccinated.
Your take on this is founded in a largely fantastical understanding of human nature.Cloth masks are essentially useless in protecting a kid against the Delta variant but they provide adults an excuse to not get their kids vaccinated because they wrongly believe in cloth masks.