I think idealistically you are correct, and a goal to work toward is not letting it bother one.
However, if you've been badly burned or are still dealing with it, and your family relationships still have unresolved issues because of beliefs like that, then it's kind of hard to just ignore. Firmer boundaries have to be installed and it takes time to do that, especially in relationships where you never wanted to have to draw hard lines to begin with.
Sounds good. I tend to not like to join groups anyway, even if I'm part of a particular demographic, and don't like getting bombarded by requests even if I'm sympathetic to the cause to some degree... I delete just about all of them. I don't like it when people assume that just because I'm in a demographic, I suddenly should support everything they support.
Oh yeah, I totally understand how it can bug people, I've got triggers too like anyone else.
When I was younger I used to have real issues with Christian evangelism, especially those who were trying to refight the reformation, perhaps they still bother me but I can deal with it a little better and I realise that they could be trying to meet their own needs and shore up their own insecurities by their actions, its them, not me and I dont need to make it about me you know?
I'll confess to a totally irrational dislike of street preachers, seriously they drive me nuts, although this isnt restricted to street preachers and I get the same way about street theatre or soap box politicos too. I used to really hate the socialist workers party at university.
It wasnt group requests, no one ever sent me a request for groups, especially when they saw that I was a member of the contrary groups from my profile.
I'd not reject someone out of hand because their opinions or politics are different, I tend to find that there's room for agreement most of the time on something or other, people dont tend to be that myopic or blinkered that that's not possible.
What is was was people posting something in an update and asking others to cut and paste it to show support and then contacting me on the chat function to ask why I'd not done so. Which I though was a no brainer.