Whether the fathers of mispallelim in Beitar’s KAJ wear Tefillin at all, should not be anybody’s concern, unless he needs to be motzi laaz on someone. Perhaps you should make this the topic of your next speech there, as well as a public apology.
In any case, my father wore Tefillin on CHM as well as my grandfather. But not because they were Ashkenazim, as I try to be. In fact, my great-grandfather and his father did not put Tefillin on CHM. They were Stoliner Chassidim. Rather my grandfather came to Canada in the mid-20s and decided that anybody who goes without Tefillin there for a whole week will become a goy. Thankfully, he remained a yid.
I have returned my family to the way of Ashkenaz which was the case for generations before Chassidus, for all its benefits and good sides, discontinued a lot of time-honoured and hallowed traditions.