They switch because they learn about the delicious truth of the slaughtering animals... which is mostly quite gruesome.... delicious, but gruesome.
Vegetables can't fight back and they can't run away. This makes them easy prey for lazy people.
Because living only on vegetables is a silent prayer to God.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.