Reply To: chesed v. ruchniyus

See Shevet Halevi (4,11) who argues with the Igros Moshe above and rules like the Chasam Sofer that the shliach
tzibur creates the tefilah betzibur and as long as they daven with him they are mekayim tefilah betzibur. People rather than disrupt the minyan should daven with the shliach tzibur and say whole kedushah together at its place as it looks from Tosfas in brochos (21,2) ד’ה אין היחיד.