Okay, it looks as though I do have to spell this out. Believe me, I didn’t want it to come to this.
Stage one - the US election has to be certified by each State. Until that is done, no winner can be officially announced for the Presidency. Not one single State has yet certified its result.
Stage two - The “office of President Elect” doesn’t actually exist and is a made up title.
Stage three - Biden calling himself, or being referred to as “the President Elect” means jack-****.
Stage four - A handful of swing States have yet to announce the result of their count (let alone certify the ballot), and are currently under investigation for serious polling irregularities which, if upheld by the courts, will entail Trump being re-elected.
Once again, I apologise for taking you through this in baby steps, but you left me with no choice.