You really say whatever, I have been vegan-vegetarian for about 15 years and doing fine. Extreme are never good. But I know people who eat 2lbs worth of meat daily and they do not know how bad it is for their kidneys.
Kidneys are the organs the most sought in the west for transplants, something to chew on
One gets proteins from essential amino acids, one just has to know which plants have them, some more than others.