>> It’s just I see SSPX members here tell us the true Church is with them and VAT2 is error (some even hint heresy). <<
The SSPX believes that the New Order mass is deficient; they adamantly insist that they are in union with the Pope as part of the One, True, Catholic church.
>> Then we have the Greek, Russian, Coptics saying they are really the true Church. <<
Yes. So? What does that have to do with the unity of the Catholic church? Incidentally, the Greek Orthodox, Coptic Orthodox and Russian Orthodox believe that they are individual national churches within the same universal church. But Coptic refers to a people (Egyptian), not a rite or a religion; there is also a Coptic Catholic Church and simply a Coptic Church that is not Orthodox.
>> One Greek Orthodox member told me what he learned from a priest. That there are many ships on the waters to salvation and only the Orthodox church is the true ship. The other ships are all trying to make port but they fight the current and have a larger chance of shipwreck. But the Orthodox ship will make port because they are the True, Holy and Apostolic Church. <<
I see nothing wrong with that analogy; the Catholic church does recognize the efficacy of the sacraments of the Eastern Orthodox churches. The only problem is in the lack of unity which Christ commanded. Of course, they see THEIR churches as the correct one to be united to... which only makes sense, or else why wouldn’t they quit their church and join the Catholic one?
When you come across an Orthodox priest ask them if you can receive communion in his church. Let me know the answer.