2- says who? scripture doesn't say that.Most of the people who post on this Roman Catholicism sub-forum really should not be here because they have absolutely no understanding of what the Catholic Church actually teaches or of its history or of the context in which a document was written, or even of the basic reading comprehension skills to understand anything written beyond the level of a 1st grade Dick and Jane reader.
However, in these things you are correct: 1.) There is NO parity or "equal footing" between the Catholic Church and any other schismatic or heretic Protestant sects.
2.) Only the Catholic Church has the sole claim to truth as it was founded by the Second Person of the Most Holy Trinity, Jesus Christ, True God and True Man, to teach rule and sanctify man.
3.) All Christians must submit to and obey the Vicar of Jesus Christ on earth as head of His divinely founded Church.
There never was any offer for non-Catholics sects to join the Catholic Church "on equal terms". The Catholic Church cannot compromise on the least point of dogma or morals to accommodate schismatic or heretic sects.
The only true ecumenism, therefore, is for those who have separated from the Catholic Church or have been brought up in schismatic and heretic sects, to leave these sects completely, renounce their heresies and errors, and join the Catholic Church, outside of which there is absolutely no salvation.
3 - says who? scripture doesn't say that.