yeah, this is mostly right. however there have been cases where these laws were applied to an individual who was supposed to, say, receive reimbursement or speaking fees from a public university. And under the legal argument most of these laws are based on/making, they assert that the boycott itself is not speech (though speech advocating for a boycott is), and therefore not constitutionally protected, so future iterations of these laws could conceivably make it illegal to boycott israel as an individual.

also iirc some cases have happened where state employees were required to sign a loyalty pledge, but maybe they were technically contractors