Query that returns all tables order by Primary foreign const

Question

Here is the simple SQL query that will return all tables from the database order by primary foreign constraints.

SELECT t.TABLE_NAME FROM INFORMATION_SCHEMA.TABLES t

Left Join INFORMATION_SCHEMA.CONSTRAINT_TABLE_USAGE cu on t.TABLE_NAME=cu.TABLE_NAME WHERE t.TABLE_TYPE = 'BASE TABLE'

Order by cu.CONSTRAINT_NAME desc

or

Select * from sys.tables t

Inner join sys.objects o on o.object_id=t.object_id

I perform insert statement these so that I want tables in primary foreign order.

otherwise, I get the error like this

The INSERT statement conflicted with the FOREIGN KEY constraint "FK_emp1". The conflict occurred in database "testdata", table "dbo.Emp".

However, what I would like to do here is to get all the tables order by primary foreign constraints. How should I query this?

Thank you very much.