Erh, One would think that when I (and OP) specifically used the word HARD as a qualifier it would easy realize we are aware there are different "kinds" of determinism.
There is no kind of determinism formally called "hard determinism". (Nomological and metaphysical determinism are sometimes colloquially termed "hard" determinism. But something tells me that's not what is meant here, as that's a very, very complicated precept which typically involves quantum physics, which I'm almost certain no one here has the mathematical proficiency to ratiocinate on and philosophise about to any appreciable degree—including myself.)
Thus, I interpreted "hard" to mean extreme. Saying hard determinism is like saying hard religion. It leaves open the question as to what extreme of determinism the discussion is supposed to be about.
Hard Ājīvika? Hard Bṛhaspatya? Hard biological determinism? Hard Vaiśeṣika? Hard nomological determinism (I'd like to witness you try to dispute or even explain its less shallow and superficial Wikipedia-derived definition; I could use a good guffaw at a grotesquely gauche gaffe)?
Or even hard physical, or theological, or environmental, or linguistic, or economic, or technological, or cultural, or logical, or adequate, or behavioural, or psychological, etc., determinism? Or hard necessarianism, or hard fatalism, or hard "soft" determinism, or hard prdeterminism?
Or...nevermind. I'll simplify it with a question: What determinism is hard, how do we decide it is hard or not hard, and what does "hard" even mean in this context?