And let's not forget about diseases like these: https://en.wikipedia.org/wiki/Bovine_spongiform_encephalopat...
Even though they do not involve viruses they are still part of a similar kind of interplay between species.
As a vegetarian, I'll happily acknowledge the barbarity and health hazards of factory meat production in the Western world. But this really is a tortured apples-to-oranges thing you're doing here. There is simply no valid comparison between a European meat grocer and a Chinese wet market, and I think you know it.
As for how much better the EU is:
https://en.wikipedia.org/wiki/2009_flu_pandemic_in_Europe
Is a good example of what can happen here.
> Also, this particular virus likely did not cross over in a wet market, there is no evidence for that.
If you're relying on a lack of absolute physical proof to support your argument, then I guess you win. Otherwise, there absolutely is evidence that this virus jumped from an animal reservoir local to Hubei, and that the wet markets are perfectly designed to facilitate that process. You're being a bit slippery on this point, but it really isn't the least bit controversial among virologists or epidemiologists.
American-style factory farming of cattle, swine, and poultry, where uncountable animals are crammed together and kept alive with antibiotics, is maybe a valid comparison. America is creating it's own epidemic of antibiotic resistance with the help of these farms (and so is China for that matter). But that does not -- or at least logically should not -- assuage anyone's discomfort with the health hazards of wet markets.
What are you suggesting exactly--that a slightly inattentive butcher wouldn't notice the difference between a leg of pork and a bat?
https://en.wikipedia.org/wiki/Natural_reservoir
For plenty of these events we do not know the reservoir animal (yet). So that butcher will know they are butchering a pig, not a bat. But that pig may have become infected and if the butcher isn't very careful he may infect himself and if the meat isn't prepared carefully it may infect those that consume it. And by the time we realize it has happened these important bits of data may have already been lost.
There is a very good book on the theme called 'Spillover', highly recommended and so far it seems to have been exactly on the money with how this whole thing unfolds. Uncanny actually, it is like having the spoiler for a movie that wasn't made yet.
Africa and Asia have a lot of this and so are a recurring theme in these very unfortunate stories. But it could happen here, and viruses really don't care about location.
Wet markets and bushmeat is how we got SARS and HIV. We're not sure if COVID-19 was really transferred that way, maybe we'll never know. The Swine flu also jumped species in a regular farm. So there are lots of opportunities all over the world, some more dangerous than others.