I'm not one for inspecting people's language choices and I'm not even from the US, so I don't have a dog in this race... but goddamn, libs using y'all annoys me to no end
Edit: I should have been clearer here. There's lots of varieties of US English which use y'all and that's obviously natural, it's just that I've seen lots of wannabe DC staffer coastal lib types using it in a way that feels kinda condescending and annoying
Some cunning linguist could definitely do something interesting investigating the "dialects" of political parties or movements, like a spiritual successor to Victor Klemperer's LTI.
I grew up in the in the SF Bay Area and at the time when I was a kid to me Marin county was the most "typical" place in California. By "typical" I mean liberal. That was a million years ago back then politics was purely adult stuff. Kids never bothered with and didn't give a crap about.
Now - many decades later - when I'm trying to get the voice right of the most liberal person possible - I try to imagine what a wine mom (Or a wine dad. A micro-brew beer dad?) in a house costing many millions would say on the net as she sipped a $300 wine. Of course - nobody in Marin is going to use y'all in speech. It's as foreign to them as talking to an actual leftist.
Y'all in rich white lib online usage is a patronizing "folksy" word to get the moronic hoi polloi to understand the realities of politics in the real world. Compromise must be the order of the day because blah blah blah blah blah...
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Ninja edit
I error checked my humor format - haha. I haven't lived in California for decades. I wanted to see how rich Marin County actually is. Yeap - I'll keep my Marin country wine mom for reference.
I keep seeing y'all discourse. I grew up in the south and the word is used by everyone as part of the typical dialect. Maybe it's an affectation in some parts of the country but it's just a normal word where I'm from.