He doesn’t have to concede, and probably won’t. Because he won. But that doesn’t mean that he doesn’t realize there will most likely be a Biden administration on the 20th in spite of that fact.
He was showing his appreciation for the border patrol and others, and listing the great accomplishments he made for a safer border, in hopes it remains.
I agree. I hope that he does not concede or attend the faux Inauguration, but I do hope that he leaves the White House with the dignity he has shown it for four years.