Comment by davisoneee

No you have an equal number of options (minor and major are effectively transpositions/rotations...e.g. the chord progressions are "m dim M m m M M" for minor (m-minor, M-major, dim-diminished) chord progression, vs "M m m M M m dim" for major).

The post is likely getting to the point that, for english-speaking/western audiences at least, you are more likely to find songs written in C major, and thus they are more familiar and 'safer'. You _can_ write great songs in Em, but it's just a little less common, so maybe requires more work to 'fit into tastes'.

edit: changed 'our' to english/western audiences