Right you're such a high moral being I respect it, nice assumption btw.
Like many including myself you might feel good for a year but you will ultimately deteriate, I know it because I've been there and don't come at me with " you didn't do it right".
All my vegan friends are around 3-5 years in and they look like shit, sunken eyes, low body fat with not much mass and lots of hairloss, but they're cult like you cannot tell them anything.
If you want to really put it down to basics think about if you were to survive in nature in your country could you actually survive without animals ?
Because there is nothing natural about getting a bunch of fruits and vegetables imported across the world most likely our of season locally and throwing it into a vitamix and expecting your body to sort through all that sludge and digest it properly.