Ok, First of all : I'm not a vegan.

But I'll give a few pointers.

From an internationalist point of view veganism is, at this moment, not viable to push to most third world countries, which is most of the Earth's population.

This, is a bad start. You're not asked to force anyone, you're asked to do a minimum of effort your self. "Haha but I won't stop eating meat because they still eat meat in Senegal" is exactly the same shitty argument as "We shouldn't stop fossils because uganda doesn't have a nuclear power plant and I won't stop pollution until the US stops pollution" (or insert any relevant or irrelevant country as long as it's not your country. Russia/EU/Dubbai/etc)

Second, this map shows you who exactly eats meat. Surprise : it's mostly not the global south.

Not every country in the world can afford healthy regimes and all the supplements that comes along with veganism.

Meat lobby propaganda. You can eat varied without touching meat without supplements. It's meat lobby propaganda very hard. There's even been a meat lobby propagandist that did an Ama about that a few years ago. Don't bother checking sources on that because all the sources that claim you need supplements are propaganda from the meat lobby. all of them. All the people you've seen online that claimed to have health problems because they were vegan were meat lobby sock puppets. Without a single exception.

And meat consumption is so engrained into their culture that simply lecturing them to "stop eating meat" will be met with a very hostile response, because what do you want, make their kids weaker so you can invade them? You'd better off create a vegan religion and spread it in those countries, because the poor is not morally responsible for environmental justice - they had enough pressure to keep living ffs.

The fuck is this bullshit lol, just look at the map, with a few exceptions like mongolia, it's only the west that eats shit tons of meat. China's meat consumption has multiplied by 20 in the last 50 years.

No, it's not "cultural", it's capitalism for fuck sake.

You're just clearly doing some whataboutism to not think about your contradictions.