I agree with what you say and that any and all definitions are somewhat incomplete …but still.
Even though, for example, you could find any degrees between a chair and a table ; you could create something quite exactly in between a chair and a table, well, despite this, it is still useful to define what’s a chair and what’s a table.
Now, about “Jim fucking Pillin” well, I cant say anything ; I’m disconnected of the topic.
P.S. :
based on my previous comment :To : @Wogi average : here it means the average man versus the average woman. I know everyone here gets offended and rightfully so. But I find it so stupid because they are not offended for the right reason. (to @HeartyBeast as well) By the way ; if you had to define woman and man, what would you say ?