Middle-aged men hate Greta Thunberg

One of the things that has bothered me for a while is why so many middle-aged men seem to hate Greta Thunberg. Suddenly, thanks to her speech to the United Nations, I know.
They are already rowing with their teenage kids and don’t need another one on their case. It was the furious, accusatory tone in which she chided her audience: “How dare you? You have stolen my dreams and my childhood.” Has not every parent had that clash, albeit more usually about whether they can sleep over at Charlotte’s on a school night?.
Let me stress, before going further, that I regard Thunberg as a force for good, even if some of her catastrophic languages can be counterproductive. She deserves appreciation, not abuse.
What are these so called naked lies???
Pardon my asking, but where ARE said feet?