Balancing act

There are still people arguing for a balanced budget amendment to the Constitution. Many of them are conservatives.
I don't get it. No one has proposed an actual amendment, including the all-important wording.
The only amendment I can conceive of that would make any sense would be "Congress may not pass a budget in which expenditures exceed revenues."
That would be a disaster.
It would be an open invitation for politicians to spend whatever they want and raise taxes to meet it, justifying their actions by saying, "The Constitution requires us to raise taxes."
Let's think this out before we press on.
Meanwhile, if anyone wants to amend the Constitution, how about one that says, "Public employees may not belong to unions."
That one has my vote, and it might make the need for a balanced budget amendment unnecessary.