> for a creationist a slightly different mote or bird will never be a proof of speciation

As I noted, for a Creationist nothing will ever be proof of speciation. But apparently telling such simple truths gets downvoted.

> As mentioned, a more radical event should happen to convince these people (so radical as to be impossible).

No, no event, not matter how radical, would convince them because they are ideologically committed to rejecting evolution, which they see as contrary to their entire belief system.