I did not downvote you myself (pinkie swear?) but since you asked, it's a little strange that you would immediately assume that the article was upvoted because of an ideological viewpoint.

Your meaning is not clear but based on the context it seems likely that you are implying that a group of caucasians have upvoted the article because they desperately want humanity to have come from Europe. If this is the sentiment that led you to post, then it is more than a little ironic.

For the record, I did upvote the story simply because it was interesting.