Studies vary, but all show greater immunity from both versus one or the other.
You also seem to ignore the J&J--it does not use mRNA technology.
That some people don't get "serious" illness doesn't matter much, because they transmit to people who do. I know of a family where the (unvaccinated, adult) children transmitted it to their father. He's dead now because he was also unvaccinated and couldn't fight it.
Vaccines, however constructed, create an immune response. How they accomplish that is immaterial. The smallpox vaccine, for example, does not use the smallpox virus or a killed/weakened version of it. It uses another virus that happens to make you immune to smallpox as well. Point being: vaccines have taken many forms over the few hundred years they existed. They are not always a weakened version of the virus they seek to create an immune response to.
If you don't like mRNA (let's face it, there's people who are scared of GMO corn), then get the J&J. But if you're like everyone else in this thread, your beef is probably not with mRNA or with COVID facts. It's with being told what to do. And for that, there's no cure and I'm not sure we'd want one. But there are scenarios where that sort of skepticism is unhealthy. And here we are.
It’s not about studies. It’s about relative short term risks, long term unknowns, and at the social level, herd immunity. Then treatment vs a vaccine. And suppression of dissent.
Natural immunity is better than a vaccine. And for those who are healthy with no known issues, there is a line where its better to get sick with the disease, than it is to risk the vaccine, which has known issues. A rational person can calculate that line.
The long term risk is that we just don’t know the effects of the vaccines on the market. There are no double blind studies on the different populations to determine anything with any confidence one way or the other. It’s an huge unknown. Another unknown is just how many people actually died of it. The CDC guidelines were not clear and numbers of actual COVID deaths are less than reported.
Then there is the current horrible politicization of this issue. Highly credentialed and practicing clinicians are being silenced and suppressed by state actors working behind the scenes to stifle debate or information on treatments.
Socially, its better for people who have the right risk profile, to get the disease. They will have far higher immunity and be far less likely to get other variants. Or to carry it. A nurse or physician who has had it is a far better candidate to treat the sick than those who have just vaxxed.
Then there are the mandates. Which boil down to “To save the village, we had to destroy it.” They treat people like commodities. It’s horrible leadership.
Then there was the lockdown which will have a long tail of untreatable diseases, educational shortfalls, and economic damage - as real as or worse than the disease.
Finally, Let’s just suppose that the vaccines do cause chronic short and long term harm. At what level of damage will it have caused the same or greater harm? I think someone in their 50s or older can live with that. But what of someone in their 30s or younger? Or your kids? Or grandkids.
Look up Frances Oldham Kelsey. She prevented a massive drug-industry disaster in this country. One wonders what would have occurred had Fauci been in power instead of her.