Why are you afraid of the old polio strain? 70% of those who contract it are asymptomatic, and the death rate in the decades before the vaccine was under 1 in

Why are you afraid of the old polio strain? 70% of those who contract it are asymptomatic, and the death rate in the decades before the vaccine was under 1 in 100000… not altogether different from sars-cov-2. To be more scared of polio than Covid seems contradictory.