"Immigration and diversity are essential for economic success" <-- somebody forgot to tell the Japanese, as they have virtually no immigration or diversity and are eminently successful.

This reminds me of the videos of John F 'stuck in Irak' Kerry (he was in Vietnam you know!) proclaiming there can never be peace in the middle east until the world capitulates to the terrorist demands of the Palestinians. Trump proved him wrong.

To paraphrase Reagan - its not that leftards don't know anything, its that so much of what they know just isn't so. Or as I postulate - leftards build their worldview on a foundation of fallacies.