Deliberate infection (or deliberate infection risk-taking) can be a valid concern, but I believe that validity depends a lot on the spreading characteristics of the virus in question. For SARS-COV-2 ca June 2020 I'd fully support the argument (the virus that was so bad at spreading from human to human that we thought that washing hands would make a meaningful difference). But with "chicken pox fast" delta, I doubt that it would make much difference. Anti-vaxxers will go through their first contact infection pretty soon wether they try or not. Just like the vaccinated. Or rather: in a very different way, rarely but still too often.