Let's say I believe much of what you said - question is "what do we do to turn the tide?" Other than preaching to the choir....
I sure wish I knew what 'we' could do to turn the tide. If I had the answer, maybe I could do the talk show circuit, or run for Congress. Best I can do from here, being old and frail, is to keep a dialog going, and hopefully one of you young whipper snappers can go out and man the ramparts.
Diversity for diversity's sake seems a waste of time to me. But I have to admit that it seems to be the modus operandi for both political parties. Identity politics is, has been, and looks to continue to be the prime battleground for US politics. I'd rather we have a melting of cultures and an emerging commonality but immigration levels and self segregation seem to preclude that option.
But is it "killing America"?
Honestly there looks to be a lot of killers out there and diversity may be one but it sure as hell ain't the only one. Or even the most important one IMvHO. But I think it is important to distinguish the "killing of America" from the "death of the American empire". They are two radically different things. This empire of ours in some ways is very different from anything that has come before. At the same time it is exactly the same in other ways.
Yes, I do believe the US "empire" is dying. Beyond any shadow of a doubt. But I'm not sure that America proper is a lost cause though it is in for some very real pain over the next few decades. But I think the same could be said for most countries.
Call me what you want, but I don't want an America that resembles some Central American shanty sheit hole, and especially not one that resembles any Muslim society whatsoever. And most certainly not one that takes in welfare candidates. If you bring nothing to the party, you're not invited. PERIOD.
I'm all for legal immigration, but I also don't want us just taking in anybody. I prefer people who take care of their property, want the opportunity to work, and want to be American first. All the rest can phug off.
You intolerant beast!
"The Democrat Party looks like Titanic survivors. Partying and celebrating one moment, and huddled in lifeboats freezing the next". Hatari 2017
"Hokey religions and ancient weapons are no match for a good blaster at your side, kid." Han Solo