He is a greedy, grifting narcissist. Detracting from everything else is Trump's modus operandi. Symbolically breaking the unification that was necessary because of racism is icing on the cake to him.
MonicaGoldberg“The arch would interrupt a carefully planned corridor between the Lincoln Memorial and Lee’s Arlington House that was designed to symbolize the reunification of the North and South after the Civil War” www.nytimes.com/2026/08/03/u...