There are legitimate reasons to be concerned over the COVID vaccines that have nothing to do with 'vaccine denial' [1]. What does 'vaccine denial' even mean? I've never met anyone who denies the existence of vaccines.

[1] Such as the elevated cardio vascular risk for young men that exceeded their risk from COVID.

If we know that [1] is true, then we know it because of science. So believing it is not against trusting the science.

> What does 'vaccine denial' even mean?

It's a shorthand for "science denial" about vaccines.

See also: The belief that vaccines cause autism.