Are you a registered member your state's engineers' association? (i.e. do you have seal?), if not please do not call yourself an engineer
I get your complaint; my father is a fully qualified and slightly/weirdly eminent electronics engineer (and IEEE member), so from a young age I've been made aware of the sanctity of the term in that context.
But the term has been used in other contexts for a long time, and most people understand the distinction.
It's not a hill worth dying on. Best save your energy for more important battles.
[1] https://www.nspe.org/resources/pe-magazine/may-2018/ncees-en...
Added: So, basically the grandparent registered on HN so they could leave comments about how people without PEs shouldn't be allowed to call themselves engineers.