If you want to get "Biblical" about things, I suggest you re-read Luke 15:11-32 and stop fighting 500 year old battles.
There are going to be a lot of Anglicans coming home in the next few years. If we welcome them by shaking their hands with one hand and slapping their faces with the other we make the good son look like the hero of the story.
Fortunately, we have Christ’s promise that heresies will never prevail against the Church. They will arise, endure sometimes for centuries, like Protestantism, but we can be confident in Christ’s promise that the Church will always teach the Truth. There simply cannot be multiple versions of the Truth.
Paul warned us about those introducing false teachings, "For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear. They will turn their ears away from the truth and turn aside to myths." (2 Tim. 4:3–4).
“And I say also unto thee, That thou art Peter, and upon this rock I will build my church; and the gates of hell shall not prevail against it.” Mat 6:18
“I have yet many things to say unto you, but ye cannot bear them now. Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come.” John 16:12-13
“But if I tarry long, that thou mayest know how thou oughtest to behave thyself in the house of God, which is the church of the living God, the pillar and foundation of the truth.” 1Tim 3:15
Then Jesus came to them and said, "All authority in heaven and on earth has been given to me. Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age." Mat 28:18-20