Also, If xiden is president, how was the Senate able to attempt to impeach President Trump? It literally could not happen unless they believed he was President.

Part of being in an office is being recognized as having that distinction. If you are not recognized, you can claim it all you want. You may have people doing what you ask of them. It does not make it so. If people don't recognize it, and last I heard, what 70% of conservatives don't recognize it what does that say? Certainly it does not mean all those people are delusional, they aren't self deluding.

If he gave me an order, I would not follow it. I would not address him as President in any way. Many wouldn't. You can call him president all you want, that doesn't make him so, and it doesn't make me delusional or deluded for saying so. I don't recognize theft as valid, and you should not either.