I‘m not disagreeing with what you’re trying to convey but still: Mussolini very likely never said/wrote that, seems to have been misattributed. IF he did, the Italian word corporazioni , while technically translating to corporations, doesn’t refer to private companies, which in Italian are normally called società.

More info:

• Mussolini on the Corporate State
• Wikiquote - Benito Mussolini

The GDPR is a regulation (that’s what the R stands for), not a directive. Directives must be transposed into national law by the member states, while regulations apply directly