It doesn't have to be the original trigger, you asked "what is the outrage about?" and those deaths are part of it.
> And 'different tactics' doesn’t explain the reaction gap, as i said, under Obama there were 3.1M+ deportations and at least 56 documented deaths in ICE custody
You continuously ask this same question, get an answer, and ignore it. ICE enforcement was not the same under Obama and Trump even if Obama had high deportation numbers. The deaths in that report were from medical issues or neglect. Horrible, absolutely, but not shootings, not American citizens, and not protesters.
Maybe instead of assuming everyone is a stooge that can only do what the media tells them, consider they may actually have some legitimate grievances?