GAW said “An Am Haaretz will always hate the Talmid Chacham (IIRC, brought in the Gemorah)”
That Gemarah (Pesahcim 49b IIRC) says that an Am HaAretz’s hated of Talmidai Chachamin is even greater that the pagan’s hatred of Talmidai Chachamin.
When an Apikoros states his hatred, it’s usually with a much more in depth hatred, looking into all aspects of the frum life for ways to bash it. I see it as a yiddishe kup biting the hand that feeds it. A goyish antisemite usually repeats the same old canard of money, power, etc.