I have every respect for people who don't like what they deem foul language, printmiss. That includes self-respect because I also dislike language that is used foully towards other people.
I suspect that the difference between you and me on this is that I also respect the right of others to use language that some people, including me, might regard as foul— foulness would depend on context of course. Someone peppering their speech with fuck is not necessarily using 'foul' language; they may just be using it for emphasis.
As an example, if someone told me, or anyone else to fuck off in a rude way, that would be quite different from someone saying "Fuck!" because they'd just dropped a heavy hammer on their toe. The second usage is not foul in my view though it may be in some people's. It was that difference of perception that I referred to in my first post on this thread: what's foul to one person may not be to another. Who decides? Not town councils.