A broad extraption that allows any interpretation dependent on the person and situation -- Does "Hope and Change" ring a bell.'America first' is a broad abstraction that allows any interpretation dependent on the person and the situation. The listener fills in its meaning. I'll leave that for the reader to consider. But imagine if instead we used 'people first' or 'workers first'? Or 'American made' as our slogan concept. Would that change the dynamics of the conversation and our values? Anyone who has read me here or on other sites should know while I am a fan of government and its regulatory and constructive possibilities, I also believe if you want a fair and sane society of families etc, only the people themselves can do that by supporting each other and not throwing stones.
A fiction or is it: My friend is always saying America first, he's proud of his nation, he wears it on his cap. He drives a foreign made car, vacations on an exotic Island, drinks imported beer and wine, wears foreign designer clothing, eats imported fruit, wears a Swiss watch, his phone is made in China, the beef he eats comes from Chile, steel and wallboard in his home is imported too, his camera is from Taiwan, the children's toys are Mexican, furniture come from overseas, oh, and his cap is made in China too. And he always says America first. [It ain't the world I grew up in and I ain't that old.]
It sure does and I think for many it happened. Consider 'don't ask' is gone, millions have heathcare, Gays can marry, the market is up, jobs are up. So I missing any point you may have thought you made? When Americans, each of us support each other as happened during the Great Depression and everyone rebuilt the nation, then we will be great again. Till then we waddle in an unpleasant place of our own making.
"If mankind had wished for what is right, they might have had it long ago." William Hazlitt