Earlier quoted context omitted.
The backlash against ICE isn't primarily about deportations. It's about ICE engaging in murder, cruelty, unnecessary violence, torture, racism, and the like towards everyone, citizen or otherwise.
There’s really no other way to do mass deportations though.
Admittedly while a non-significant number of those deportees were turned away at the border itself, another key difference is that Obama didn't hire record numbers of barely qualified (40-50 days worth of training) people and then send them to occupy American cities.