Whether the Church is teaching the true Faith is a different question from whether Bishop X does. Individual bishops can be in error. The Church as an institution does not teach error.
At least, that is what faithful Catholics believe. If you’re not Catholic, cebu, God’s going to handle everything anyway.
I understand your point. However Paul rightly deemed "us" as members of the Body of Christ, with Christ as the Head. Jesus said in John 15: "6 If anyone does not abide in Me, he is thrown away as a branch and dries up; and they gather them, and cast them into the fire and they are burned."
So that tells me the members of the Body should not be warring against the Head. And that if you have members that do not abide with the Head to cut them off.
Put frankly, you can say all day this bishop and that Pope don't represent the church, but by not dismissing them and putting those that do abide in the ways of the Master Jesus Christ the Head of the Body in place, you condone the leaders and teachers of error.