Hi HL,
Just to be clear, I don't think Biden is claiming that he 'can' bring unity. His claim is that he will work to bring unity. Whether he is successful is going to depend a lot on whether people who think like you do, and hold all these supposed hurts and angers in their heart...to let them go. Sadly, the truth of the matter is likely that those people will continue holding on to their hurts and angers, because that is pretty much the nature of all men, and Biden's ability to work towards unity will be greatly hampered.
Give it a try. Decide in your heart today that you're going to let go and let God. Decide in your heart that you want what God has to offer. Remembering that God's word says that you will be forgiven in the same way that you forgive others. Try letting go of all those supposed sins that you think politics has foisted upon mankind, and understand that we're all just sinners; we are all men and women who are broken, sinful, unwise and just trying to do the best we can. Have some compassion for those who are not as perfect as yourself. Remember that Jesus had compassion on a woman who was fornicating with men. Do you think that you could do that? Have compassion on a harlot?
Do you honestly believe that God finds your list of hurts and angers that are keeping you in some 'super fight' mode, godly? Righteous? What if God really meant that we should love one another as we love ourselves?
God bless,
ted