They’re told that it’s incumbent upon them to make converts, and I dare say she’s been led to believe that as a non JW you will be denied entry to whatever heaven they believe in.
Personally, from experience of JWs persistently coming to the door after they’ve been repeatedly - perfectly politely - asked not to, I loathe them. Particularly when instead of accepting that, they’ve made unbelievably patronising replies such as, ‘But we’re concerned about you!’ ??
Sadly I don’t think polite requests work.
I’m afraid to say that my lovely American BiL’s way was probably best! Sadly no longer with us, he was born into a Jewish family but as a teen rejected that faith and was very much anti all religion.
I don’t recall how we once got on to the subject of JWs and their nuisance calls, but having heard that saying you’re Catholic is a good way to get rid of them, I asked why he didn’t just say he was Jewish - surely even more effective?
In his laconic way he replied, ‘I just tell them to get the f#@* out.’
Might add that like a pp, I have known them to target people at a low ebb, especially the recently bereaved. And I’ve heard that they check the Deaths announcements in local papers for likely prey. How true that is I don’t know, though.