It depends on what exactly they are doing, which you do not specify. At the local Tridentine Mass community, which is the oldest in the United States, has been going strong for nearly 25 years now, and which was recently given a parish staffed by the FSSP, the chaplains have been vigilant in nipping such behavior in the bud by including instruction in their homilies. For example, when one chaplain learned of a female congregant who was chastised for wearing pants to Mass, he told the congregation from the pulpit that this was unacceptable. When he heard some rumblings of discontent over the luminous mysteries of the rosary, he gave a homily discussing why he loved the new addition to the rosary. When the congregation was given a local parish as their own, they were implored to be respectful and courteous to the congregants who had been attending the Mass there when it was an ordinary-form parish and who would be unprepared for the transition to an extraordinary-form parish. Perhaps you might suggest to your pastor that he and the parish’s other priests and deacons adopt a similar approach in handling the influx of “rad trads” to your parish.
