They are part of the Catholic Church.
The Vatican II church is not the Catholic Church. The Catholic Church is truth, not sometimes truth and sometimes error and heresy. Not the majority of the time error and sometimes truth.
Rat poison is 99% nutritious food.
Stay in a state of sanctifying grace by going to frequent confession and mass, do the rosary every day, wear the Brown Scapular and live as if you will die tomorrow, and do not waiver from that life no matter what any priest, bishop, pope teaches you by bad example.