This is a wonderful sentiment, so let's remember that Trump is considered by most political historians to be in the bottom 5 US presidents of all time. He has already failed at the top job so why does he deserve a second chance?
Harris is tremendously underwhelming as a candidate but the democrats have had the best donation day in history following Biden's resignation so their support is coalescing. I'd think Trump is still the favourite but now it's a razor thin margin as opposed to a shoo in and a couple of good moments and Harris (or whoever is nominated) will defeat him.