I dont know as many languages as OP, but I can compare german to english.
English is "technically" gendered, but compared to german, basically everything exept the things where it makes sense are neutral.
German is complicated. Everything is gendered, and exept for some very obvious stuff (man is male, woman is female) it just is random. Shoulder is female, arm is male but hand is female again. House is neutral, wall is female, floor is male.
So in comparison, english is slightly gendered and german is completly and randomly gendered.
I take issue with your second paragraph. It implies a order (natural=good) that just isnt there in the world, especially the exposure argument. Humans die pretty fast from cyanide and other plant based poison despite millenia of contact, but Teflon and metallic titanium (both comercially produced since roughly 80 years) are safe to impant.
Also genetic modification started with doestication through selective breeding and crop selection - all comercially used species are modified in any number of ways.
Im a chemist and maybe had too many arguments with "nature good, chemicals bad" types, so please take my rant with some (very natural) salt.
I dont know as many languages as OP, but I can compare german to english. English is "technically" gendered, but compared to german, basically everything exept the things where it makes sense are neutral. German is complicated. Everything is gendered, and exept for some very obvious stuff (man is male, woman is female) it just is random. Shoulder is female, arm is male but hand is female again. House is neutral, wall is female, floor is male. So in comparison, english is slightly gendered and german is completly and randomly gendered.