From a purely purist perspective, correct.
However, using their own petard to hoist them by is appropriate and every opportunity to do so needs to be taken.
They promote that sham called “diversity” and “inclusion”...well then, it’s time they learn the true definition of it.
PC be damned...
And don't be surprised if they take that petard and use it to escort the guy out the door. Home Depot is free to do what they want. And if people don't like corporate policy they they are free to move on. I have no idea how much LGBT people spend at home improvement stores or how many LGBT employees Home Depot has, but it's obviously enough that they think it justfies making nice to them.