Even the best latency is dozens of seconds behind live action.

Your ISP doesn't have enough bandwidth to the Internet (generally speaking) for all users to get their feed directly from a central location. And that central location doesn't have enough bandwidth to serve all users even if the ISP could. That said, the delay can be pretty small, e.g. the first user to hit the cache goes upstream, the others basically get the stream as it comes in to the cache. This doesn't make things worse, it makes them better.

You know, like every other broadcaster, streaming platform, and company that does live content has been able to do.

Acting like this is a novel, hard problem that needs to be solved and we need to "upsell" it in tiers because Netflix is incompetent and live broadcasting hasn't been around for 80+ years is so fucking stupid.