I think I explained that. When the Roman Emperor Constantine took over Christianity to solidify the support of the Army, he called (HE CALLED, not the Bishops) for the council of Nicaea to convene in order to find out the particulars of his newly adopted religion. It appalled him that writ large, Bishops from all over the Empire could not present him with a consistent set of doctrines that could be established as, "Here is Christianity." There wasn't a single Christianity, but multiple sets of belief, and the Emperor could not abide this.
Basically, the Council of Nicaea was convened to create a "Statement of Faith." that could be spread across the Empire. (Obviously the "radical" minorities had to be squelched and excommunicated.) Please remember, by this time around 325 AD, Constantine had moved the capitol of the Roman Empire from Rome to Constantinople (now known as Istanbul in Turkey). Over the next 100 years, as the Western part of the Roman Empire finally fell (i.e. disintegrated into the regional territories of Germanic tribes that were never unified until Charlemagne until 800 AD) the Eastern Empire remained strong, with one faith guided by the Patriarch (Bishop) of Constantinople.
The reason that the overwhelming majority of manuscripts agree with text from the Byzantine Empire is that these manuscripts came from the Byzantine Empire. The Eastern Orthodox Church of the Byzantine Empire made sure that all the churches in their empire had manuscripts that agreed with those held by the Patriarch of Constantinople. Paper wears out and disintegrates, so as new churches monasteries were built, or as old churches were remodeled and improved, any older manuscripts were collected and trashed to be replaced with exciting new copies coming from Constantinople. I gather you are Protestant, so imagine Billy Graham, or Martin Luther coming to your town, bringing spanking new Bibles for your church. The old ones would be collected and disposed with.
And so your "overwhelming agreement" among the various manuscripts found later within Byzantine Empire is not a miraculous event.... just normal librarian curation. (New Bibles, with that New Bible smell.)
I cannot tell if you're just obtuse or willfully ignorant. Westcott DID NOT TRANSLATE ANY Greek text. How come you say these bizarre things? WH took various differing Greek manuscripts and folded variants into a single Greek text that they thought (from their studies) to be closest to the original texts. They didn't translate anything.
With all due respect, please stop saying absurd things like this.