Eliezer,

"Genes determined the framework which memes exist in" is not an important argument about what sorts of memes we have. I think your intended implication is that genes fundamentally have control over these issues. But genes created brains with the following characteristic: brains are universal knowledge creators. With this established, other parts of the design of brains don't really matter. Memes are a kind of knowledge and so there are no restrictions on what memes are found in humans due to genetics or some aspect of our brain's design.

BTW what is the implication of emotions being memes that would be scary? The most notable consequence I see is that people could be more optimistic about changing the emotional part of their lives, which is a happy thought.