Explain this to me

I don´t write about sex too often, or I should say I never, but now I will. Just because I do not understand this.

On The Press I read:

A new phenomenon in New Zealand is taking the idea of you are what you eat to the extreme.

Vegansexuals are people who do not eat any meat or animal products, and who choose not to be sexually intimate with non-vegan partners whose bodies, they say, are made up of dead animals.

Now to what I don´t understand…

Humans are primates and Wikipedia writes this about primates:

A primate is any member of the biological order Primates, the group that contains all the species commonly related to the lemurs, monkeys, and apes, with the latter category including humans.

Now, if we humans are primates, then we are animals and if so, haven´t the vegansexuals reasons for not having sex with meat eaters sort of failed?

I just don´t get it!