There's a big difference between seeing an immigration raid where you know whoever gets picked up is going to have access to a lawyer, be subject to proper due process, and at worst be sent back to their home country. We knew - or at least believed - that if they detained someone who was a citizen, that person would be released.
Now, when we see ICE grabbing someone, we know that person probably won't have access to legal representation even if they are here legally, even if they're a citizen. We know they might be sent to a concentration camp in a foreign country they aren't from, and we know they might even get murdered in the street. It's a very different dynamic.