Well the origins of the Sea People aren't really mentioned in a lot of history books rather than them just being "marauders." I was wondering if the Sea People were from European bronze age civs like Protovillanova/Nuragic civs?
There is always more to say, but some previous questions here have covered areas very similar to the one you're asking about; you might like to review some of the responses in our FAQ while you wait for fresh answers to your query: