Not taking the vaccine is a substantial risk. I thinks it’s irresponsible to casually discourage people from taking vaccines.
If you want to risk your own life in a way that doesn't risk other's, fine by me.
But don't equate that to an activity that also risks the lives of others.
If you want to get natural immunity without risking the lives of others, I could imagine a service where you quarantine at home after intentionally being infected with the disease, but even then, there is the negative externality that a certain percentage of young people will need medical care, resulting in increased risk of spread and reduction of healthcare capacity.
Please don't pretend like you live in a vacuum.
That aside, driving a car, even with a license, is a non-trivial risk to others, possibly the greatest chance the average person has of killing somebody, so I don't see how they're not comparable. Moreover air pollution kills seven million people worldwide each year, which everyone contributes to when they drive, and that's way more than covid19's killed.