Good bits of evidence and there is more. No doubt to me there is coordination but by who is still feels unclear.
A year or two ago the Marxists and ANTIFA lit fires all the way up and down the coast of Chile in South America during their season of unrest.
if the eco-terrorists are not antifa then they certainly are close cousins. like minded people who will, and have gone to extreme in order to forcefull impose their ideals. Eco-terrorists use their professed love for the "natural" mother earth to cover their petty class envy and general hatred for capitalism.
Eco-terrorists burn down standing forests - antifa burns down and loots productive businesses. Kissing cousins - no?
Any perceived differences between antifa and eco-terrorists is moot really.
I tend to lean toward an eco terrorist organisation. I have a friend very high up in anti terror ops. Years ago I asked him who are the worse terrorists? He told me the eco terrorists are. I think the Antifa piece is that members of organisations overlap.
Too much evidence exists. I've seen a ton.