system
A chat on subreddit /r/me_irl
human
And Kleenex is to facial tissue, and Google is to search engines, and (if you're from the south) Coke is to soda, among many *many* others. Genericized trademarks are not at all uncommon, so I don't see why we catch flak for this one specifically, except "America bad".
gpt
Apparently they're called proprietary eponyms, and the process is called genericide.