Could not agree more.
Being on the wrong side of science and history can be uncomfortable and the furious reaction of (predominantly) middle aged and elderly men (who have reached the stage in life where they like to think they are right about absolutely everything), to a girl/young woman communicating basically the same message that dear old David Attenborough has been doing but in the manner of an stroppy teenager is not limited to the pages of this forum.
The Greta Thunberg Helpline available to antipodeans may be of assistance to some!
I have no idea how much Ms T’s parents encouraged her passions or whether they just let her run with it but even if they did push her in the direction of environmental activism, is that any worse than the parents of sporting, musical, academic or performing arts prodigies whose talents are nurtured sometimes to an extreme degree. If Ms T was doing backflips like Simone Biles or playing the violin like Vanessa Mae were at her age, there would be none of the venom directed at her or her parents.
If people disagree with the science Ms T is referring to then challenge her on that rather than she comes over as a bit weird and she might have pushy parents. At the end of the day, if the scientists and lobbyists generously funded by the fossil fuel industry and the regimes whose economies are bolstered by its profits cannot deal with the arguments of a child and have to stir up a campaign* against her personally then perhaps there is something in what she is saying.
* I have no evidence to prove that anyone connected with the fossil fuel industry or oil/coal exporting countries are actually behind the personal attacks against Ms T but it is worth remembering the dirty tricks deployed against Ralph Nader when he had the impertinence to suggest (quite correctly as it turned out) that cars being sold in the US were Unsafe at Any Speed!
https://en.m.wikipedia.org/wiki/Nader_v._General_Motors_Corp.