So why didn’t Biden cancel this piece of Trump work like he cancelled everything else Trump?
Because he can’t. Presidents can’t undo statutory language with an Executive Order.
Everything Biden has undone of Trump’s was originally done by Trump with an EO. Had Ryan & McConnell worked with Trump the two-years they held the Congress while Trump held the White House, Biden would have been SOL. But, they didn’t instead limiting their cooperation on a tax package that provided significant benefit corporate America.
They could have codified the construction of the wall, enforcement of the border, protection against this woke and TRANS bs we’re dealing with now, but didn’t because that’s not what the Chamber of Commerce was telling McConnel & Ryan to do.
The aliens told him not to. ;)