If I understand correctly, Dems recently established a precedent of taking members of other parties from the committee, and Reps are retaliating. Whatever it is, yes, people are entitled to have their rep, and Congress as a whole is entitled to limit their powers. This is not a bad rule in terms of dealing with extremists and keep Congress somewhat “centered”.
Note other similar events in recent past – Dems changing Senate rules for district judges, and Reps responding by changing Supreme court rules.
Note that this is not fair warfare – Dems are usually the first to move and Reps are playing defense.
Eventually this will cause even higher outrage and Reps will start pushing for starting out with their own changes. This is not going in a good direction. I hope they all stop.