No, because gunpowder has no loyalty, no terms of service, no American CEO who can be forced to testify before Congress and say interesting things about European defense customers or provide lists of who has a tattoo or not.
Half of the comments in this thread are expressing how they're very against the idea of something like Palantir "but European". It seems like some Europeans really believe that handicapping themselves is a good idea.
perhaps, but civil law is a negotiated contract including rights of all involved. If a tech conglomerate invents new applications, are they now exempt from civil law?
The era of the Nation State began when courts did have real means to enforce against powerful rogues. The suggestion that simply applying a new weaponized technology overrides the legal context is regressive.