Here is the thing that many will not acknowledge. America works because people will blend together eventually. People arrive and seek their own kind whether its Irish, Muslim, Italian etc, but by the second generation they no longer need that comfort and they blend into the fabric of our country. The fear mongering about the attack from within just reeks of the white christian people longing for the good old days when they represented a solid majority and could impose their will across the board through governmental power.
In my opinion, to survive everyone is going to have to learn to work together and compromise. This attitude of you're either with me or you can GTFO ain't gonna cut it. Neither side has all the solutions and the constant refusal to reach across the aisle is hurting us as a nation. Working together should be something we aspire to do. Now, if you even suggest a disagreement with your party you are labelled a traitor and every attempt will be made to toss you out. It's disgusting.
In truth, I like your ideas above. How I wish it were true, and even ends up being true. However, two things work against the things you expound. One, the USA isn't a nation. We have no collective, historical, shared cultural identify. Thus, we buck the trend in terms of what a nation is. We don't share a physiological trait as, say, does the Japanese, Chinese, Irish, Welch. Nor a
historical uniform language, an official language, yes, but not a
historical uniform language. The other thing is that our history shows that we are and will remain a country rent with factionalism. The current MAGA, BLM, Woke, leftism, rightism, and other movements are just rebranded historical factional conflicts that have infected the country from its inception until this day. And it continues. Sadly, enemies such as the Chinese, Russians, even the Palestinians, and other Arabians have come to realize this. And are using our factionalism to breed distrust among the people, discredit our institutions, infiltrate, our corporations, educational systems, even our military, to basically dismantle the country both from outside and within. I've said it before, mainstream America in general has no idea how much seething hatred it has generated over the past few centuries, nor the price gradually manifesting itself today. In effect, we're helping them slit our throats, but we're too stupid to address our issues in a positive instead of a condemning manner. So, enemies exploit this stupidity.