I don’t understand this.
It means the GOPe have been lying to you all these years, saying their hands are tied by the courts.
If I understand your comment -
Federal courts are courts of limited jurisdiction. Congress can enact laws removing certain issues from their original jurisdiction. In fact, they could disestablish all of the district courts if they wanted to (but the judges could probably continue to draw salaries for life).
Under the Constitution, you could pare the federal court system down to the Supreme Court, and give it trial jurisdiction over "In all Cases affecting Ambassadors, other public Ministers and Consuls, and those in which a State shall be Party, the supreme Court shall have original Jurisdiction. In all the other Cases before mentioned, the supreme Court shall have appellate Jurisdiction, both as to Law and Fact, with such Exceptions, and under such Regulations as the Congress shall make."
So except for the listed items, you could require all trials to be in the state courts, with appeal to the federal courts " to all Cases, in Law and Equity, arising under this Constitution, the Laws of the United States, and Treaties made, or which shall be made, under their Authority;—to all Cases affecting Ambassadors, other public Ministers and Consuls;—to all Cases of admiralty and maritime Jurisdiction;—to Controversies to which the United States shall be a Party;—to Controversies between two or more States;— between a State and Citizens of another State,—between Citizens of different States,—between Citizens of the same State claiming Lands under Grants of different States, and between a State, or the Citizens thereof, and foreign States, Citizens or Subjects."
Cruz isn't proposing anything so radical, he's talking about a limited pare back.