Yep, but the Know Nothings know nothing about anything, and so they bleat out their ignorance, preferably in unison, but as loudly as they can.
It's about time, actually way past time, all those "world leaders" - every single one at least decades behind the curve - get their comeuppance, and so what if it's a girl who tells them what they need to hear? I, for one, haven't heard anything so unambiguously correct, and morally on the point, from that podium throughout the entirety of my life. There may have been one, but I doubt there was ever a scolding so well deserved. Greta should have extended it to the entirety of those "world leaders'" generation of self-serving, spoiled, if way over-aged brats destroying their kids' and grandkids' future. How dare they, indeed?