Here’s a fun question. Do you just stop abruptly and release a few million cows to roam and do whatever a wild cow does, or do you have a huge feast
Slaughter the majority of exaliating stock over the course of a year and sell the rest as pets.
Not actually serious, but all of the major meat producing animals are slaughtered before their first birthday so phasing it out would take care of the population without needing to release millions of stock.
The real question is whether the species should be reintroduced to nature or not. It isn’t like there are wild cattle outside of Africa and maybe Asia other than buffalo anymore*. We would need to take the time to reintroduce feral livestock so they could adapt.
*that I can recall off the top of my head.
Hawaii has wild cattle that you can hunt. Not native, but still quite wild, and very dangerous.
We already have that huge feast.
There are about 1.5 billion cows on the globe, but cows would go extinct if we stopped breeding them for just 6 months.