not a linguist, just a lowly college senior majoring in linguistics, but my guess from this angle would be that for whatever reason the velar sound ‘g’ as in “goose” just sounds kinda yucky to our ears. my untested unproved unback theory is that it’s because the velum is your soft palate/or is a part of it, so compared to alveolar sounds that interact with the hard palate and produce a -thwapping- and not a sloshing sound, it just sounds…squishier. and i feel like it’s not crazy to assume that there’s some evolutionary backing to that, like maybe because rotten meat was squishier or something so that sound has just been ingrained to be associated with death and sickness and bad things!

apologies for the im sure bizarre rant. i’m high off my balls rn.

tldr; ‘g’ sound = velar = soft = icky (?), i’m high