But you’ll worry anyway, as your anxiety is a product of your biochemistry, which is governed by deterministic processes.

It makes absolutely no difference if you think about it. It’s not like choices are made for you even if the universe is determindric. If the world is or isn’t deterministic it’s not like anything would meaningfully be different - things would still be unpredictable to us. In an indeterministic universe randomness would play a part in outcomes, but that’s worthless to us. This meme is about choices anyways, randomness or determinism doesn’t matter in the end.