Just some thoughts... not hate.
- deal with legal threats
What are they doing that could land them in court? Actions always have consequences. A shit poster online saying they're going to take you to court online isn't a threat (If they're even real and not bots). When the paperwork shows up then it's a "threat". Maybe they should consider that they could be on the wrong side of the law/issue.
- deal with threats from social media brigades run by 2023-era "bitcoin maxi" influencers.
Again what threats? I only sasee the odd over the top person, most people just don't want non-monetary stuff. Sorry to hear if people or bots are sending threatening messages, it's bullshit. I hope you don't consider the people who understand a lot of topics, including incentives and technical details and are willing to put their thoughts out there, noise. Seems that core devs aren't really listening to some of the deeper arguments. I see a lot of pro-core devs/people saying its a bunch of noise, but then they don't even counter the points given. Just because someone is new to bitcoin doesn't mean they don't understand or haven't done their homework.
- soul crushing and time consuming rebasing and code review
What? You choose what's worth doing. How does this not apply to any other project, especially project that is voluntary? There is always grunt work to be done, but you do it because it's worthwhile.
- have deep knowledge of complex cryptographic protocols, engineering and economics
Devs didn't need to have this before? I would hope understanding the project deeply would be a requirement when you're making decisions for it, especially when they can have large consequences for a monetary network of people's savings. Many of the core devs think people commenting on these issues need to be super enlightened, so why wouldn't the core devs need this too? We all have things to learn, that's why we use others to give feedback.
I can understand being new and helping out with minor fixes and features, but when it comes to policy and far reaching changes, you'd better know your stuff and trying to figure out how it's going to effect things in the future.
We have an incredible pool of talent, so use it.