Curious...why is natural immunity the best thing? For many other virus based illnesses this is not true at all, for example chicken pox, which has had one of the most impactful vaccination campaigns over the past 20 years, also prevents shingles which is essentially the same as your "long term side effect" fear from the COVID-19 vaccine. What about the potential for long term side effects of the virus? Those have been quite prevalent with people I know who have had the infection.