Is there a convenient way to say "despite and (actually) because of" in English?
I don't think we can do it without repeating X:
*Notwithstanding, and indeed because of, X....
The above would be very stilted.
Notwithstanding X, and indeed because of X, ...
The second X could be a pronoun (it, them) or some periphrasis for X.
Notwithstanding those crude brushstrokes, and indeed because of them, we must move these paintings front and center in the exhibit, for they mark a departure for the artist, who is about to enter her primitivist phase.
OR
Those crude brushstrokes notwithstanding—indeed, because of them—we must move these paintings...