Father bless,
So if they are both valid and licit, then I take it you would also contend they are not in schism from the Roman Church?
If they are valid, licit, and not in schism, then we need to ask: what possible reason would they have for reestablishing full communion with the Holy See?
Also, if they are both valid and licit, yet are not in schism, then shouldn’t we be saying “I believe in Two, Holy, Catholic, Apostolic Churches”?
I was a Russian Orthodox Catechumen for almost a year - I reverted back to the Roman Church one week before I was received into Russian Orthodoxy via baptism and Chrismation.
I also attend a Ukrainian Catholic Church now.
But in my mind, the Eastern Orthodox are Holy, Catholic, and Apostolic - but they are NOT One because they are in schism from the Holy Roman Church.