"but thankfully, an increasingly number of modern biblical translations are getting it right, and removing Lucifer entirely from Isaiah."
Which plays right into Lucifer's plan. Lets not admit the devil is real, that would make things way to simple.
Confusion and chaos...Tools of Satan/Lucifer/Ba'al/Beelzebub
God commanded that no one alter His word. You re-write the Bible, and muddy the waters and invite His wrath.
And this ends this discussion; for you, Sir, are hopeless.