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You don't seem to be getting it. The problem is not really the PL teams winning or going trough, it's that arrogance you sometimes see from fans supporting English sides.
Like there's nothing else than PL, anything else are Farmer teams from much inferior leagues, when there's not that big of a difference as some PL fans likes to think. Doesn't mean all PL fans have this view, but a little too many have this lack of respect for clubs from other leagues.