Just because your enemies will not always be your friends does not mean it is useless to TRY to convert them to be one's friends. It is, as most things, a bet. One must know, beforehand, if it is WORTH it to try.

Nevertheless, the statement to which I replied remains evidence against rather than evidence for. You are of course welcome to support the sentiment despite the anecdote in question---such things aren't typically considered to be strong evidence either way.