Your first paragraph, about ad blockers, is very strong, thank you. I may even be convinced. I already want a world where communication only happens by consent, and framing this change as fundamentally coercive makes sense. One may object on the basis of wanting the consumer to consume "the whole thing", however I think that's easy to dismiss. I think I'm convinced.
Your second paragraph, about chain of trust, gets a little more wobbly, but this is a matter of fact, not opinion. Will this change require a chain of trust from hardware up? That's startling. Do you have a link? I read the proposal but don't recall seeing that.
The third paragraph seems to articulate the worry that systems will now be closed with centralized gate keepers determining what we can do with our systems. Or at least, that will be the default unless you can get grandpa's old TPM-free linux laptop working again. And even if you do, you won't be able to connect it to the future internet to do anything real. That's not a good future. It's one which makes individuals passive and controlled by central authority - and even if you don't object to this morally, you must admit that an ignorant and disabled population is weak and susceptible to attack.