Feif Un, you are fighting a losing battle. Not because you are wrong, but because there are plenty of hard-headed people out there that refuse see the forest through the trees.
Its unfortunate, but it is one reason why there is so much sinat chinam amongst Jews. [And that goes in both directions, YU/MO is not blameless either, but in my experience the harshest reactions come from the Yeshivish side towards the MO side]