The Sea Peoples are a modern invention; there are two references to them in Egyptian contemporary records, which are misdated by centuries anyway. The Sea Peoples left no towns, no distinctive burials, armor, weapons, rulers (including conquerors of the lands they supposedly conquered), written records in their own right, and perhaps most significantly, no wrecks -- the last one being pretty damned peculiar for a massive group of seagoing conquerors.
Whar about the Egyptian records, including illustrations and names?