You're implying that a shadowy conspiracy of politicians and climate scientists has, over the course of decades, spun the entire concept of climate change out of whole cloth purely to justify an otherwise-pointless tax? And, for good measure, that all tax is illegitimate?

Taxation is theft on gunpoint. You can't opt out and get nothing of value in return. I see no evidence that trusting politicians is a thing people should do. Neither would I put much value onto what studies say that were paid for by people with an interest in discovering climate change, which we used to call global warming, but then stopped, because it never actually got much warmer over the course of decades.

If you want people to believe you start with being believable. For example, make a prediction that actually comes true. Never seen something like that in relation to "climate change".

This thread went straight from denying changes to conspiracy theories about tax, all without a single shred of proof.

Since when was proof required when talking about climate change? If there was actual proof that human activity makes a difference, there wouldn't be any denial.