As you probably know, there is one unforgivable sin: Blaspheming the Holy Spirit.
Even in jest, I would strike that comment...have it deleted and pray over it.
Seriously.
No worries there...
Notice the conditional "If" wording in my reply.
No blasphemy there for me...
because I would never deny the Holy Spirit was derelict or false
in guiding the first 1500 years of His Church's existence.
Though youre right...
If I didn't believe in the Church
the Holy Spirit has inspired for 20 centuries...
I just might share your thoughtful concern then...