You are totally right with the need of more water to produce meat than crops.
However you say that Venezuela doesn't allow you to be egetarian/vegan? I see it like this, there are so many foods you can eat every day, also in Venezuela, that aren't meat. I really hope this doesn't offend you, it's just how I understood what you said. I think you have a false belief that you can't be vegetarian at least if you're from Venezuela. All it takes to be vegetarian is to not eat meat& fish. I would argue that it is that hard to find anything else to eat other than meat & fish, there are literally thousands of possibilities on food choices, even in Venezuela. But the current society has conditioned us to eat meat, dairy & eggs everyday, in enormous quantities. It has almost become the only thing we eat, meat fish eggs dairy everyday, but it musntl't be like this. I understand your concern of low food diversity, however I suspect you overanalyze the whole situation because being vegetarian is fairly easy regardless of country. You just have to eat anything but meat, to help yourself, the animals and environment.

I really hope my comment didn't offend you, my only intention was to showcase my different opinion. :)