Your post was just straw manning. You need better reading comprehension skills and better debate skills. Your first comment was especially awful and you should feel bad about it. Keep fighting that straw man.
I am pro help the environment. I just don't think Thunberg will prove to have been helpful. She is mostly troll bait to shame the other side and it is embarrassing to see people use these tactics. Please try to learn to understand nuance.
It absolutely does matter who we hear the message from. It'd be much better to hear it from someone with decades of research in the field with the charisma and ability to say it in a way people can understand.
Thunberg is an over privileged very young girl with social awareness/developmental issues that gave a dramatic speech that mostly consisted of her attempting to shame people.
"How dare you. I shouldn't be here." These are dumb statements. It is just about creating memes.
I'm truly frustrated that OTHER (because I am one, I'm even LGBT too) liberal people think she has done something great or even good. It will most likely just go down as an attempt that will be forgotten.