That’s way too simplistic an statement about pardons. If you say it about the Biden clan then you can say it about the Jan 6 protestors.
In fact, the motivations for issuing, as well as accepting, pardons must be considered individually.
I think in order to issue a valid pardon, you must specify the crime of which they are being pardoned.
For all we know, the Biden’s who were pardoned may have the bodies of 25 kidnapped children buried in their basement? If they dig up dead children in their basement, are they immune from Justice?
Yeah, they need to challenge these blanket pardons. They cannot possibly be valid.