Obama years had also the same kind of abuse and killings by the border patrol. At least 56 recorded deaths of immigrants caused by ICE and custody[0]. Some murders were settled to avoid a trial.

Protests against ICE were much smaller then (billionaires didn't fund NGOs to organise them either), so it was easier for the agency to operate as well, and it was quickly memory-holed.

[0] https://www.detentionwatchnetwork.org/sites/default/files/re...