At most they would be a nuisance, and in any regard incapable of stopping a force on what would effectively be a suicide mission anyway.
Not too sure about that. The entire Seventh Fleet had 6 BBs, 4 CAs, 5 CLs, 83 DDs, and 25 DEs. Of these 6 battleships, 4 heavy cruisers, 4 light cruisers...