I would not object to a Union monument to their dead as long as it was done in good taste and did not seek to overshadow other monuments.
According to the story there were 3 times as many Union dead. I do know that soldiers who fought in the battle all agreed that it was the most ferocious fight they were ever in.
There is a monument to the Union soldier in Lynn Haven, Florida, just North of Panama City.
The first Confederate monument in Florida and the second one anywhere is in my home town of DeFuniak Springs, FL.