What many vegans do not appreciate is that changing the diet of the world to plant-based would only create more problems, and it's not possible anyway.
Over-production of soy, almonds and avocadoes is already destroying bio diversity and rain forests.
Look at the massive fields of crops in the UK, the destruction of hedges, and how the biodiversity is impacted by that.
Getting the variety of plant based food is not possible without airfreight, so anything that is 'saved' by stopping eating sheep, cows and pigs, is outweighed by destruction of the ozone layer by transport.
If you really want to be a vegan, stop eating fruit and veg that has air miles, and exist solely on UK produce.
I think you'd struggle struggle.
It's fine to say you don't want to eat animals, but take responsibility for what over-farming and air miles are doing to the planet.