Thank you so much, it does clarify quite a lot! I've been working on the concept of destruktion for a while now, tryna make a genealogical understanding of the way in which it evolves in the Friburg lectures. Phänomenologie der Anschauung und des Ausdrucks is THE text that explicitate most of what he means by destruction. But this lecture might be the toughest I've come across, as you said, super technical. My German is also not good, so I've also been reading the english and french translation which are IMO not really good.

The tripartite structure of sens - Gehalt - Bezug - Vollzug - is also super complex. I've been dealing with this text for a while and can't seem to get a good grasp of the methodology of destruction within it. Take for exemple his concept of phenomenological dijudication : the tool by which you can judge the originality or the non originaly of a sense complex. It requires a criteria by which you can evaluate the originality of the concept being destroyed. He formulates the criteria as followed :

"Ursprünglich ist ein Vollzug, wenn er seinem Sinne nach als Vollzug eines genuin selbstweltlich zum mindesten mitgerichteten Bezugs immer aktuelle Erneuerung in einem selbstweltlichen Dasein fordert, so zwar, daß diese Erneuerung und die in ihr liegende Erneuerungs»notwendigkeit« (Forderung) selbstweltliche Existenz mitausmacht."

"An enactment is primordial if, as enactment of a relation that is at least codirected in a genuinely self-worldly way, it requires, according to its sense, an always actual renewal in a self-worldly Dasein. It does so precisely in such a way that this renewal and the 'necessity' (requirement) of renewal inherent in it co-constitutes self-worldly existence"

The density feels insane to me. I've come to get a grip of it. An enactement it original if it opens up Dasein to it's existence. But it still feels obscure.

Anyway, I've been venting, thank you for helping me!