Still might. I'm curious how many apathetic voters just won't vote if he's out rather than crawl back to team Trump. I assume most Kennedy supporters probably knew this was going to happen eventually.
He's still polling just under 5%, yeah he's not gonna win but that's still better then any other third party candidate in the last couple cycles and represents millions of (braindead) Americans. Even if you don't support him you should care he's endorsing trump as the race is still very tight and if a majority of his supporters follow him into the trump camp that could be it for Harris.