Not only because he himself adopted the attitude toward the God of Israel that the original Philistines adopted, but because his own cultural tastes were driven by personal animosities rather than by any coherent aesthetic criteria.
Anyone who declares the New Testament and the late works of Wagner as "worthless" or "trash" is poorly positioned to describe anyone else as a philistine.
(2) The Seleucids may not have been pure ethnic Athenians, but the culture they promoted was Athenian and they were educated in the Athenian manner.
(3) The Maccabbees defeated the largest empire in the world and were in turn defeated by an even more powerful successor empire.
Their success in achieving and maintaining their autonomy is nothing short of remarkable.
(4) If you are a "nonbeliever" then you have nothing to offer except complete moral relativism. You argue from a position you can't even absolutely defend.
But the God of Israel is not relative. He is true yesterday and today, now and for eternity. His eternal fidelity is the reason why there are still Jews around today to obey His Torah.
Neither you or I have ever met an actual Seleucid or an actual Philistine - remember that.
Bravo, wideawake!