There's plenty of data, lazy anti-vaxxers don't want to do the hard work because it debunks their 'truth'. Even if you can't be bothered looking, surely using simple logic, you can see historically that before vaccines a much, much higher percentage of hospitalisations and ICU patients.
No doctor or nurse I have ever spoken to thinks that unvaccinated on average aren't far more susceptible to serious illness. It's really not even an argument but the antis will keep bringing it up.
