I understand what you're saying, honestly.
The blockchain is unforgiving regarding similarities between what someone posts and what already exists on the net, especially if there are no references to outside sources. The assumption is that when someone posts their own work, it is of their own creation and without direct influence from outside sources. So, if someone's work appears similar to an outside source, downvotes can occur.
I don't fight the community's position on this because I've seen the ramifications of it IRL. However, nothing is set in stone until the payout. Votes, at least mine, can be reversed.