Comedy just pokes at problems, rarely confronts them squarely. Drama is like a plate of meat and potatoes, comedy is rather the dessert, a bit like meringue.
You make films whether they're dramas or comedies about neurotic people. Flawed people. Interesting personality traits. To make them about calm, stable untroubled people isn't interesting.
The comedies are not a million laughs on the set. Its business and the dramas are business as well, really. When I'm writing it I struggle more with drama because I started out in comedy.
Drama, it would be as if you wrote some poetry. You'd run the risk of being embarrassed if people read it, because you're pouring your heart out and you're not mitigating it with any humor or anything.