You're quoting Donald Trump, ...need I say anymore?The myth about "the earliest manuscripts" is just that. FAKE NEWS. The earliest manuscripts (meaning primarily Aleph and B) are the most corrupt.
There is more than enough documentary evidence to support the authenticity of 1 John 5:7. There is also plenty of internal and grammatical support.
...but, I will.
Enoch111, you sound silly and incompetent when you start to declare 'conspiracy theory', seriously.
You see, had their actually been a deliberate and unified attempt at corrupting any textual family, a thorough job would have been expected.
Meaning, to leave out one or two random verses, that are in support of various doctrines, respectively, and then to leave the rest that are equally considered to be in defense of a particular doctrine, DOES NOT SPELL CONSPIRACY!!!!
Do you get that part, it's called elementary reasoning, dialectics 101????