Everything worked out but that made them think that living out in the middle of nowhere was going to have to come to an end soon.
Another example, every once in a while you'll see an article or a politician talking about what a tragedy it is that broadband is more expensive/worse in rural America, and how we need to, say, support some government program to fix that through subsidies. Usually said articles will include some quotes from people who are in relevant areas. I'll see comments on articles -- including places like HN -- talking about how satellite internet operators are "price gouging" people for mediocre speeds.
But I admit that I'm far from an expert on this topic, it would be interesting to read studies or polls on how people in rural areas feel about this.
Fun Fact; post 2008 recession was the first time since the depression that many food banks saw more need in suburban and rural areas than inner city.
Whether that's the kind of "attacked" that sounds like Obama saying they "cling to their guns and their religion" (that is, personal attacks), or the kind of attack where policies are created intentionally to harm them (like subsidizing international shipping and trade, or free trade deals which had the direct consequence of shipping many of their jobs overseas).
Of course, like all topics, the truth is more complicated than the meme, but these are the kinds of feelings you'll hear about if you start listening to Trump voters.
I don't know where this meme came from, but I don't think it was from rural people and to the extent that it's true, I think it's more a response to the contempt ruralites have felt from the urban elite (ranging from the incessant depictions of rural America as backward and racist to the general neglect with respect in response to the most recession to the pro-illegal-immigration stance which entails competition for the rural/poor and cheap labor for the urban/elites).
Another problem with your argument is the attitude of "why do you choose to live there?" implies that people elected to move to rural areas in a time when these globalization issues were reasonably foreseeable, and it implies that it's trivial for everyone (including the rural poor) to uproot their lives and move to a city.