The cenotaph is a big phallic symbol of white supremacy right in the middle of the plaza, which does not accurately portray any part of the Alamo's story, not even the battle. It's an embarrassment to historians. I can fully understand moving it far away.
Spoiler
The Cenotaph is pretty much a grave marker, nothing more, nothing less. If you see a penis or the KKK, then you're doing it wrong.
That said, if it has to move, San Fernando Cathedral area would be nice, as that's supposedly where the remains are held.