//-- Is Climate Change a threat?
-- Can we do something about it, at least the parts that are in our control?
-- Are we doing enough? Collectively, as a species.
-- Should we try to move faster to mitigate the threat?
Given that the answers are yes, yes, no, and yes,//
Those answers are not "given" by any means, Jim, and thereby hangs the problem (that people who see the answers differently are castigated).
My answers are (and others are available):
(1) Possibly. Nobody knows what threats it will present. Mankind has faced many threats and the forecast outcome has often been spectacularly incorrect.
(2) My earlier answer (somewhere) suggested that the UK has done about all it reasonably can (note "reasonably"). In fact I think it's already strayed into "unreasonable" territory. If Ms T's musings are directed towards the UK she should look elsewhere.
(3) Possibly. Possibly not.
(4) No (back to "reasonableness").
I believe most of the animosity towards Ms T is that she is naïve. Again, as I said earlier, people don't mind being advised to desist from doing something if they are presented with an suitable alternative. Ms T's mantra is (to precis considerably) "don't burn things". Well mankind has developed a lifestyle over many generations that revolves around burning things. If they are being told to stop they will not do so unless and until some suitable alternatives are available or the stuff they burn runs out. Suddenly they see a young fanatic on their telly telling them to adopt a different lifestyle and being given the airtime to shame their leaders. They don't like the message and alas as a consequence many of them don't like the messenger.
Now they see the same messenger prattling on about something totally unrelated and which is giving most people all sorts or grief. More than that, despite your disagreement with the point, she is portraying it, completely inappropriately, as simply a problem of "child rights". It's little wonder she attracts so much venom. People across the world are struggling with the new restrictions placed on them and are suffering all sorts of problems. Then up pops the Messiah and declares it is simply a problem of "child rights". You couldn't make it up.