Earnest there is no doubt the virus causes heart attacks and strokes, in rare cases even among young people. And it seems entirely plausible that some young people who have died from the virus would not have died if they had the vaccine.
The complicating factor is that vaccines also cause some heart attacks and strokes.
So the key question would seem to be, for young healthy people in particular: is getting a vaccine more likely to prevent you from getting a heart attack or stroke from the virus, or is it more likely to give you a heart attack or stroke as an adverse effect of the vaccine?
Because we hear stories about young people who died from the virus and we also hear stories about young people who died from the vaccine. What we need is good reliable data.