I could see why anyone would say that. However, if that was the case, why not continue them to carry on the fear and feelings against their movements?
Then again, I've been saying the same about the current protests against ICE. Sure, some may dislike what they're doing or how, but that so many non-immigrants are rioting serves little purpose other than outing potential future troublemakers.
They're expending themselves, wearing themselves out. Like are they really going to muster up the energy to do the same in 3 years or so for whatever else if need be? It's like Occupy Wall Street, after a few months it isn't so fun camping out anymore in the cold.
They're also getting themselves busted, identified, even put away. So they're wasting themselves on something that's going to happen regardless when who knows what might happen in the future that might hit them closer to home.
I just find it odd that they're getting this riled up over the issue and putting themselves out there to such an extreme point.