Yes there is a difference in bio-availability. But have you ever checked what the actual difference is? No? Because then you would know the difference is negligible. "No" people in the western would have a protein deficiency, however many people overeat both kcal and protein.
There is no issue in getting enough proteins on a vegan diet/lifestyle.
How does it look like meat exactly? You extract mushroom/disk-forms out of the cow or what? The cucumber shape of hotdogs, or maybe the falafel shaped meat balls?
Vegans want it too "look" like meat, not because they dislike the taste of animal flesh, but because they don't want to kill anyone.
I always laugh at this... "Meat" looks nothing like the original flesh of the animal. A sausage looks more like a cucumber than it looks like an animal. A hamburger is of a form as a disk/circle/mushroom, how natural is that? So no vegetable burgers, sausages, etc does not look like meat, they are in easy shapes that enables us too eat them.
Just like almond milk has existed for hundred of years so have vegetable products. Next you will say a falafel is in the shape of a meat ball?
And since people don't get it, many eat vegetable products so no one needs to die. They don't eat it because they don't like the taste of meat, cow milk, cow cheese, etc.
It's not about taste, but about suffering, killing, moral, environmental, antibiotic resistance bacteria, mono culture crops, and many more reasons to eat plants that "look" like meats. Burgers have existed in plant form for a long time, it's first when the meat industry is loosing ground there suddenly is a problem. Plant milks have existed for thousands of years, and suddenly they are not allowed to be called that anymore. This is a lame attempt from a corporation that fails to take new times into account. Maybe some people want to limited the damage we have already done to our planet, but of course this is lame. If we all dropped animal product from our diet we could immensely help our earth and environment, we could drop our emissions by up to 22%.
That´s false, most people are overweight. It´s not that vegans/strict-vegetarians have a problem to get enough, its omnivore that have a problem with to much. The only diet that have a healthy BMI on average is vegans/strict-vegetarians.
There is no issue in getting enough proteins on a vegan diet/lifestyle.