I feel you concern. Just watched some interviews about Extinction Rebellion. As you say, we have a lot of environmental activists, yet we don't seem to be getting anywhere. ER calls for non-violent revolution, and I agree. And, yes, Seaspiracy and Cowspiracy are truly daunting. Here is a link to ER interview: https://scheerpost.com/2021/03/02/hedges-the-age-of-social-murder/