There's a lot of misleading information out there about myocarditis that makes the risk sound much worse than it is.
Yes adverse myocarditis reaction is a risk. But it's something like 1 in 17,000. 1 in 500 Americans have died from covid.
Even if you're young and healthy, we have no idea the long term risks of contracting a serious case of covid. You have to factor that into the risk equation.