I don't care if this data exists or it doesn't. Even without this data, there's no good reason to think that the vaccine has a higher chance of long term complications than COVID itself, which makes the decision to get vaxxed an obvious one, even for young people.
Yes, training your cells to mass produce a new protein we're not familiar with is absolutely safer than your trained immune system possibly encountering a mild viral load, with the proteins attached to the shells as normal.
Anyone who doubts the safety of this new immune system programming is obviously either a science denier or a paid [insert foreign country] shill.
This is silly because of the strong evidence that has emerged about long COVID. We know there are often significant long-term complications to COVID. You can see things like reduced grey matter volume in people who have had COVID across multiple regions of their brain. Yet for mRNA vaccines there is simply no reason to expect anything remotely this bad. You're positing that there could be surprise side effects into the future that will, with non-trivial probability, outweigh the long-term side effects from COVID (e.g. literal brain damage) that we've already observed. If long COVID wasn't a well-established observation, then I'd grant that you have the ghost of a point.
