The only major research I've seen that wasn't mindless droning from MSM that mentions myocarditis is that the vaccine causes it. Research typically mentions that covid19 is a respiratory illness. Meanwhile the MSM have claimed with minimal evidence that sure the vaccine causes myocarditis but so does covid19 and covid19 does it worse (citation needed also define worse myocarditis?). But the vaccine also doesn't prevent infection and isn't the same as getting covid19 so you can get vaccine and covid 19 problems... eh why not just take both to maximize your chance of myocarditis? and thrombosis... and dying from covid 19 strains?

We take vaccines to protect ourselves... except the vaccines don't protect individuals, to protect others! except the vaccines don't prevent spread... to save just one life... by maximizing the chances of death or injury... no wait... we take these vaccines because people in the government tell us to take it. That's what vaccines are supposed to be about, taking it because people who can't be coherent or consistent told you to take it. I'd write more but then my post would look like a lefty meme.