In the concluding paragraph, how does the author make the conflicting
point of view that vegetarianism is strange and unnatural seem less
reasonable?

The conflicting  point of view that vegetarianism is strange and unnatural seem less  reasonable because vegetarianism is healthy, beneficial as well as natural. However, the idea of consuming meat and killing of animals might seem unnatural and tragic to some people.

Vegetarianism is much more natural than consuming meat as consuming meat means killing other animals. But vegetarianism seems as people do not have to kill a plant. They mostly use its seeds, fruits or leaves as food.

By pointing out that vegetarianism isn't contagious

Explanation:

I got this right on iready!

not concrete, existing in thought or as an idea but not having a physical or concrete existence

impartial means: treating all rivals or disputants equally; fair and just.

i would say that impartial is agreeing with something, because impartial means to treat your rivals, arguments, and reasoning equally and fair. so if you rival says something, agreeing on it means you did the impartial.