Of course it's not "the dirtiest industry in the world". The point is that it is still not an especially "clean" industry.
I agree and I know you are not a person who is anti-Bitcoin.
I believe you also know a famous saying "The truth lies somewhere in the middle" and it's true with Bitcoin energy consumption too. It's not the dirtiest industry, not the cleanest one but the point is it is better than many industries, nations that are used to attack Bitcoin mining industry.
IMO there IS FUD. But it would be much better to refute that FUD not only by even increasing the renewables percentage, but also by showing that Bitcoin is actually really useful.
There are still many opportunities for increasing percent of clean, renewable, sustainable energy resource in Bitcoin mining industry from technological innovations, applications to mining locations and operations. It takes time but the human civilization are going toward the future this way, and Bitcoin mining industry will not be the exception, while I believe it will be more or the most adaptive in this energy consumption shift.
But many Bitcoiners still propagate the narrative that Bitcoin is only good for speculation. And you can speculate with high risk/return also with things like penny stocks, gold and PoS altcoins. (I'm playing the Devil's advocate, but that is like many people think!)
That's stupid and people must beware of this stupid idea.
There is no convincing point for shifting from PoW (decentralized) to PoS (centralized). If they need an example to wake them up, it's Ethereum.