As a federal research ecologist, your conclusion here is wrong on many levels. There will be no biodiversity left to collapse unless we first get climate change under control. Doing so via a clean energy revolution will also eliminate the majority of environmentally destructive fossil fuel projects and accompanying infrastructure. As laboratory grown meat develops & gains consumer confidence/preference, it will be a major boon to biodiversity by greatly reducing the numbers of domestic livestock on the landscape & the huge crop acreages where produce is raised simply to be fed to cattle. it will take decades for the economics and landuse practices to play out but if we can make it through the climate bottleneck I suspect we'll see major rewilding of many agricultural landscapes later this century & that will go a long way towards stemming losses of biodiversity.
Agree with your timeline. Right now we are having water quantity and quality issues in addition to wildfires, bad air, and migration of new viruses(ie. Covid and its mutations). We are close to running out of time. I don't care if they give unions more money(but please not for Hybrids(with gas engines) although like the coal industries the auto industries won't survive so give them new jobs or just pay them from the subsidies given to the fossil fuel industries as this avoids the middle men. I believe the UAW only has 150,000 jobs and Tesla alone has close to 100,000 plus the many sub industries who employ many thousands.
Tackling Climate Change means not burning fossil fuels at all. When I see some(not all) conservationists or Democrats complain and see them driving ICE vehicles the hypocrisy stinks to the high troposphere. Actions speak louder than words.
We all are solar and EV's (Tesla is the only viable option IMO) and even use electric chainsaws and snow throwers. It is so easy, saves $, and is a tiny carbon footprint.
I thought the new administration was smarter than what I see happening now. I am more than disappointed although I don't know their strategy.
I like what Kimbal Musk is doing and helping feed people in the cities. Huge Kudos to Elon Musk for his donations($50 million) to help childhood cancers.
We are not eating much meat at all. We eat Spirulina from Hawaii(Cyanotech sells it in Glass)which has 60% protein and many vitamins. Protecting the oceans that makes 50% of our oxygen is crucial so there is that issue with all the plastic crap and runoff from agriculture.
Getting people to agree by overcoming their own biases ain't easy. As Mark Twain said, It isn't what you don't know that gets you into trouble, its what you think you know for sure