Rarely are Catholic apologists theologians; more rarely, philosophers; rarer still, students of the Saints.
When it comes down to it, a surprising number of those who "Say the Black, Do the Red" don't.
The greatest obstacle to the acceptance and practice of Catholicism on the part of the masses is that it is a fundamentally and even intrinsically inconvenient religion.
Homilies are not a good place for academic dissertations, but that is where they are commonly found.
The single greatest cause of few and bad Confessions in a parish is few and bad confession times.