Vaccine hesitancy is largely irrational, however polio and COVID-19 are hardly comparable. Polio has a 2 - 5% infection fatality rate for children and young adults, whereas the COVID-19 IFR for the same age group is close to 0. We're talking about multiple orders of magnitude difference in relative risk.

https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/burd...