That would be illegal, or at least unenforceable in California. Intel and AMD wouldn't exist if that were legal here anyway, both were founded by way of exodus

That would be illegal, or at least unenforceable in California. Intel and AMD wouldn't exist if that were legal here anyway, both were founded by way of exodus from an eventual competitor. Intel in particular, its two founders were original members of the Traitorous Eight that left Shockley to found Fairchild Semi.