No, but I can see pushing for industrial agricultural and food sale law changes that would reduce overcrowding to reduce risks if there was good evidence that it would help. This may include encouraging people who can to consume less intensely-farmed animal products and prices going up on some products which would also likely cause a reduction in some areas. This would need to be counter-balanced by investment in other types of agriculture to ensure people can have adequate nutrients. These are things many are already involved in - I know places that are working to diversify protein production in the UK.
I could also see pushing for changes in selling laws around certain riskier meats, but few of those are really eaten much in the UK, to my knowledge, so that would need to be an international effort and we would need strong evidence to pursue that path.
Not everyone can live well on a vegan diet - some can and really enjoy it, but not all. There are reasons the recommendations for chronic low appetite and some other health conditions include dietary recommendations with animal products in them. There are still communities that rely on traditional practices for food that includes animal consumption and I don't think they should be pressured to be vegan for the rest of us (not that that is what the OP is doing, but I could see certain eco charities like Greenpeace who have a history of doing this using the same reasoning).
I don't view 'everyone being veganism' as an ideal for this or any other reason, but I'm not sure an ideal exists, it's always going to be a balance of risks and benefits. I don't think anything as individualistic as some people going vegan will solve anything, I think it would just create different problems (which modern commercial veganism with foods flown all over the world has done). This needs work at more than the individual level.