They are not effective and lead to a false sense of security and excessive smugness. Why would you recommend people submit like sheep to an ineffective tyrannical order? Particularly if you dont believe they help either?
As for "submitting like sheep" the question is whether I should stand up and be counted as a mask refuser or wear one. But those aren't the only two choices. People can stay home and kill the economy. I refuse to stay home and kill the economy. The argument that masks harm the economy is the most spurious argument I have ever heard but hear it over and over.