As I pointed out, connotations are a stubborn part of the linguistic milieu.
Sometimes it is a good thing to defy connotations because you are challenging their validity (I’m thinking of the recent vote by the Senate that climate change is not a hoax).
But everyone knows that the F word today means to commit an evil sex act whatever it originally meant. To the point that I wouldn’t propose it to my wife no matter how amorous we were getting.
I beg to differ.
While the word definitely alludes to a carnal encounter, it makes no judgement as to the intent with, or manner in which, the act will be performed. The aggressive sonic attack of the closing consonants sounds as though it might imply negative or harsh associations, but beyond the tortured allegorical assumption based solely upon the phonetics, there is no indication of "evil."