What we eat is different for each person, but taste plays too important a roll, and desensatizes people do u ?

Selfishness is in all walks of life. But with eating, a vegan has to argue presumably with ordinary omnivores , that eating flesh isn't necessary? Isn't it selfishness that stops them from seeing the truth in them selves, that it is unnecessary to kill and eat animals? ....37 years strict vegan [and 3 years raw only food].