What a difficult question. It seems that divisions really haunt us, chase us, appear suddenly out of the blue, and hamper our spiritual progress. If I returned to Ukraine right now, I would be in a similar situation. I would want to go to a Ukrainian Orthodox Church (Kyiv Patriarchy) parish, and of course I would immediately hear lots of voices both from without and from within, "hey, what are you doing, don't you know that they are schismatics, self-proclaimed, not in eucharistic unity with the Orthodox world!"
From everything I read and heard, I can say that Copts are certainly an authenic, ancient, disciplined, beautiful community of Christian faith. I am not a theologian, so I might miss something, but to my un-educated mind the only reason why they are not always and universally considered Orthodox is that they have not completely recognized (or "received") all of the doctrinal documents of the Ecumenical Counsil of Chalcedon. If I understand correctly, there exists an ongoing dialogue between them and the Orthodox "mainstream." Maybe you could benefit from reading some of this dialogue - even here, on this forum, in the relevant section about Oriental churches.