Now you can call it anything you want...it's a wall, a barrier, a deterrent, a fence etc etc
We're looking for a result with benefits. And this see through wall/fence seems to fit the bill.
It's really common fence.
You have to consider President Trump and his whole life....building "solid" buildings. It's his language. Everyone seems to want to play "gotcha".
Well it makes no difference what you call it, it does make a difference in what it really is.
This temporary metal barrier there putting up won’t be there to protect my children and my grandchildren from invasions.
The difference between a temporary barrier and a wall is huge.