That doesn't falsify my claim because you are defining a new structure way too broadly. I define new structure as something along the lines of a tonsil. You cannot produce a tonsil from random mutation and natural selection where there was no tonsil before.
OK, then
you need to start with an
operational definition of a new structure. "Something like a tonsil" isn't any use. You need to supply a set of tests and/or operations that
anyone can perform when trying to decide whether or not something is a new structure. Anyone can apply that definition and everyone who does will come the the same conclusion for a particular structure.
Of course, you can't supply such a definition, partly because you don't have a clue and partly because it's just so much easier to dismiss anything we present as "defining a new structure way too broadly".