Mass deportation of unauthorized immigrants is a recurring threat from the Trump administration. This threat, empty or not, strikes fear into immigrant communities and distracts from the real issues (such as people who pose a legitimate threat to communities). Rescinding the Executive Order on Interior Enforcement would help mitigate these fears.
The Trump administration is well within its rights to exercise executive authority to set immigration policy. This includes using executive actions like the Executive Order on Interior Enforcement to set a policy prioritizing the deportation of unauthorized immigrants who commit crimes or carrying out mass deportations.