You've got it backwards... Federal agencies exist under the executive branch. We elect (democracy) a president to run the executive. Past presidents have let the executive branch metastisize into a monster that no one person can understand, let alone lead. The checks and balances that are there to constrain the executive have failed leading up to this moment, resulting in the administrative state bloat/fraud. FINALLY, the ultimate check was activated and the States overwhelmingly elected a president who specifically ran on doing exactly what he's doing now; removing the cancer in the executive branch. We aren't giving power away, we're culling power that's already been abused.