A Large Well Requires Many Shovels

Individual cases can be used to represent any stance on any issue.
And while individual cases make up the overall situation, one should not be mistaken as being accurately indicative about the nature of the other in any way.

Just as all is not representative of one, neither is one representative of all.
Consideration of the overall situation provides a more accurate basis for a well thought out opinion.

The collective whole is made up of the individual parts, one cannot hope to be the other.
That said whole must include all of its individual parts if it is ever to be considered a collective and complete representation of those parts.

This is especially true when the issue is one who's answer is one that will be applied to the collective whole.