First, it is not a “much” higher level, and even that is dishonesty through statistics because it relies on the trick of lumping all ages together to make that claim. Post-vaccination myocarditis affects younger people, and particularly younger males at a much higher rate than the general population. If you are looking at young kids, and especially young male kids, your statement is false.
Here are the numbers:
We see a heavy increase in the risk to young males. The risk to women over 30 and men over 50 is effectively nothing, but those group represent the overwhelming number of vaccines given which allows the technically true but misleading-in-the-context-of-children claim of "myocarditis and perocarditis are caused by Covid 19 at a much higher level".
This data show that for males aged 30-39, the risk is roughly 1 in 140k. For males aged 25-29 the risk rises to 1 in 60k. For males aged 18-24 the risk rises again to 1 in 20k. For males aged 12-17, the reported rate is 1 in 16k, but it is important to note those aged 16 and 17 are vastly over-sampled due to vaccines being open to them far longer than the younger members of that group.
Let me ask you to do some back-of-the-napkin math. You can see the curve increasing for younger males, and you can see the rates they are finding with the next cohort up seeing 1 case of myocarditis for every 15,936 vaccinations. With that rate, how many cases of myocarditis should you detect if you run a sample of 2,200 kids aged 5-11 for your vaccine efficacy study? Zero, right? With a sample size that small, you'd statistically expect to find zero. That isn't what they found.
If you are claiming your local hospital is full of kids aged 5-11 who have had strokes induced by SARS-CoV-2, I'm calling B.S. If you meant that comment to imply that adults are at a higher risk of stroke in this discussion over risk to 5-11 year old kids, then I'd say that argument isn't constructive but rather deliberately deceptive.