>

I’m vaccinated and boosted as a precaution, but I was never under any illusions that it is a proven, working vaccine.
What it is is the less risky alternative to getting Covid with a naïve immune system.
Apart from that it’s still a roll of the dice what happens next.
Let’s mass breed and keep thousands of animals susceptible to avian flu in filthy horrific conditions … Gee, I wonder what could happen?! Smdh >

What happens is millions of human beings eat good protein everyday. The industry props up supermarkets, restaurants, frozen food. Virtually everyone eats this stuff. >

Mink? Because it’s the minks that have the ability to potentially cause an avian virus to adapt to a mammalian one. I’m guessing though you meant chickens but they aren’t an issue. Mink are specifically the issue here & they’re bred for luxury fabric, not food. >

Good point. I first thought "Well we're already culling chickens for bird flu so why would we be worried about Mink? Isn't that the same?"
Then I realized Minks are mammals. It is worse and creating a environment for easier adaptation. It's the intermediary selecting a virus, ensuring it is suited for infecting us. >


This has potential to get disaster-movie bad.

Again? >

Avian flus have a higher morality rate than COVID. >

That's a huge understatement. 
The deadliest COVID strains have a mortality rate in humans of around 1%. That's enough to overwhelm our hospitals and shut down global society.
Now imagine a global respiratory pandemic with a mortality rate of 60% to 80%. That's some avian flu strains. We've been incredibly lucky that none of these super-deadly strains have developed human-to-human transmission so far.
That said, if COVID has taught us anything, it's how to design, manufacture, and distribute vaccines really quickly, and influenzas are easier to make vaccines for than coronaviruses.
There's also the possibility that if/when avian flu mutates to become easily transmissible between mammals, it may also become much less deadly, which is what happened in lab experiments. But we can't necessarily count on this outcome, which is why these incidents are a cause for concern, and why it would be a really good idea to ban farming mink (they're susceptible to both avian and human flu, so they're ideal "mixing vessels" for a zoonotic mutation to arise in). >


Now imagine a global respiratory pandemic with a mortality rate of 60% to 80%. 

Depending on how transmissible it would be in humans, that would make the refrigerated trucks to hold dead COVID patients look like a joke. There could be bodies lining the streets if it was as bad as COVID. It probably won't be as easily spread as COVID but it would still shut everything down much more severely if it ever makes the jump. To the point that any shipping, travel, even leaving ones own neighborhood or house would be heavily restricted. >

At 60-80% mortality, you think there would be any organized group left to enforce the restrictions? >

Well, that depends on how quickly and easily it spreads. But if it is anything like COVID (which is unlikely), in that case I'd think people would self-restrict just from fear. 60-80% death rate isn't something anti-vaxxers and deniers can just raise their noses at and call fake news. There would be literal piles of bodies everywhere, with people burying their family members in their backyard because of how overwhelmed all the health services would be. That is, if they're even functional at that stage. COVID wasn't even that bad in the sense that a lot of people didn't even show symptoms at all and the majority of people just got better at home, and even that pretty much crippled health services in a lot of places. 
There has been ~670 million cases of COVID in the last 3 years, that'd be 400+ million people dead worldwide, 60+ million people dead just in the US. I'd think people would be too scared to even get close to another person if that were the case. For comparison, the Spanish flu killed like 25-50 million worldwide in a span of ~2 years, COVID itself is at 6.8 million right now in 3. 
It more than likely will not be as easily spread as COVID if it ever gets to the human-to-human transmission stage, but even if it's like a tenth of that, it would be pretty scary. Scary enough for the vast majority of people to restrict themselves even without anyone to enforce it. >

with such a high death rate etc... i wonder how even society could exist at all. I mean food production, delivery/transport process, etc. would be affected by it probably so heavily that survival would become very difficult >

In the worst case scenario, it probably won't. Water, electricity, and food would be pretty hard to get with all the people that would normally keep things working getting sick and dying, or refusing to be around other people. I don't think anyone is really prepared to live in a world like that. Even those preppers that have like a bunch of beans stocked up would struggle. We can only really hope that if this thing jumps to spreading among humans that it can't spread out of control very easily. >

Cmon!  Everyone will pull together, wear masks, isolate themselves and work for the greater good.  I’m sure we’ll all be fine!  /s >

And if a proven, working vaccine is developed, everyone will protect themselves.