First, did you read the OP? Hawaii is excluded.
Second, did I say surfing was “invented” in CA? Nope! Popularized, yep, that I said. Popularized through song and movies.
If you look at most lists of top surf spots in the US and/or the world, Huntington Beach, San Diego, Malibu, Half Moon Bay, etc. are usually mentioned. And Hawaii too. I’m not from Hawaii, but I visit often, and have visited many of the best surf spots there.
How many East Coast beaches are considered a top surfing spot? Maybe one, Cape Hatteras, in North Carolina.