Well, I just read that link very carefully and this quote,,,
"Antichrist", therefore means, literally, "someone who stands instead of, or in place of, the real Jesus Christ".
in line with,,,
It could be someone who falsely claims to be Christ.
It could be a false Christ, promoted by others, in place of the real one.
It could be someone who falsely claims authority to speak for and exercise the authority of the real Christ.
makes absolute perfect sense to me.
This term "instead of " fits in with so many false prophets we see on the television.
Never be overwhelmed by decisions, just consider the right ones and your options will be far fewer.