I hate grammar but I do not know why that matters.
If you loved grammar, you might understand why it's so critical to clear thought. It's not about placing commas and using the proper verb conjugations, as you seem to believe. It's about understanding the structure of language, which means the structure of thought. We all think in language, most especially in a place like this. If a person doesn't understand how language is structured, I would argue that he may have some difficulty understanding how to think clearly.
You hate dictionaries as I recall (no wait you don't hate them you just believe your above them).
As a young linguistics student I bought a large hardbacked dictionary and proceeded to read the entire thing, line by line, including all the introductory material. As I read, I had three different pens and used them to write color-coded notes and comments throughout. When I was finished, I put the dictionary aside and haven't opened it since. Instead I listen very carefully to the words of other speakers. And I write.
So far as the primitive idea that dictionaries dictate meaning, that notion is beyond ridiculous and easily disproven. I really don't know why people continue to believe it. I consider it to be a belief in magic.
I hate grammar because it is based on nothing. It is just an opinion that is used to establish a norm (no more "right") than it's opposite.
I'm sorry, but you're simple confused about grammar. You are talking about mere surface stuff, usage issues such as are found in the Chicago Manual of Style or the AP Stylebook. You're confusing grammar with correct spelling and such.
Then let me add to what I have said. 5% would not make a huge difference to a doctrine established by 750,000 words and exhaustively explained over and over again by multiple authors. Even Ehrman admits that not one of the errors is within core doctrine....
'Doctrine' is slipperier than eel slime. It's just as easy to declare the other guy to be violating proper doctrine as it is to proclaim that he is adhering to proper doctrine.
The typical error is the loss or gain of a zero for how many soldiers one side had or how a name is spelled.
Nonsense. There are substantial translation differences even in the 'approved, standard' Bible versions in modern American English.
That does not seem to stop people from reading the majority of books in history. How many H's are in John or where a comma goes in a verse about raising goats does nothing to affect what Christ did.
Oh, my.
The differences between most translations are much ado about nothing and the same standards used as a indictment against the Bible are suspended for 90% or written texts of every other kind. Why?
I have no good idea what you are asking, but I'll guess that the answer is 'doctrine.' The other books carry no doctrine, especially not doctrine significant enough to curse someone to eternal hell.
Another example is the messiahship of Jesus. If we translate those prophecies into one shape of American English, Jesus missed. If we translate them into a different shape of American English, he fulfills them.
So I'd think you would be concerned about precise translation.