A lot of the rhetoric from the far right about civic nationalism is wrong. Just because something isn't eternal doesn't mean it was a failure.

It doesn't, of course, but if you allow something to be destroyed you have failed. One can argue that civic nationalism prior to the collapse has not failed, but not if it is adopted as a purported preventative measure.

The majority of human history is in a sense multicultural states and empires. Even today the world outside the West are not just homogeneous nation states. Do you think Russia is a nation of only Russian slavs? Or Iran is only Persians? Even the Persian ethnic group is one that is a mixture of different races which is why a Persian can have a wide range of phenotypes.

Not multicultural in any sense like we have today. There was no taboo on "racism" for the majority of human history, and so groups could form identities and tribal allegiances. Leftists tend to vastly exaggerate the degree of diversity in historical societies. Travel to any village in medieval Europe and everyone there will look the same.

We could formalize this, of course, with an explicit definition and measurement of multiculturalism. For example, mean distance from grandparents' place of birth. You know what the results would be - the graph would form a hockey stick just like the population graph over time.

Israel is not ethno-nationalist. Jews come from all over the world but there is no conflict between the white or brown Jews.

Israel is exclusive about who they will let live in the country, based on ethnicity. This is something civic nationalists do not support. And I'd double check there is no conflict - it wouldn't surprise me if there were.

I think the main thing about your argument here, though, is that you're missing the point. The point is that race correlates to culture, and so the only way to be a civic nationalist is to accept the reality of race anyway.

For example, you may not care "what people skin color is so long as they agree with our values," but the reality is that skin color is a pretty good proxy for "values" anyway, at least among non-whites, who overwhelmingly vote for the left. All European nationalist movements have a very tiny nonwhite contingent.

The other issue is that nonwhites simply aren't buying civic nationalism whatsoever. They have a racial consciousness of their own (since it is not rendered taboo).

For example, blacks commit more violent crime than whites. This could be true of any racial group in principle, but in our world it's blacks. We're not going to change this without changing the culture you ostensibly wish to preserve, so, it will remain so. But blacks have a strong racial consciousness, and they really care about their higher incarceration rates. So you'll continue to get protests, until your culture is destroyed.