What are the problems with Trump's aggressive immigration rhetoric and mass deportation policies according to John Oliver's analysis?

John Oliver critiques Trump's dehumanizing immigration rhetoric, particularly his characterization of immigrants as "stone cold killers" and "not people." Oliver exposes the dangerous nature of this language and examines the practical impossibility and moral bankruptcy of Trump's proposed mass deportation policies. He highlights how such aggressive approaches would create significant logistical challenges and economic consequences while perpetuating harmful stereotypes. Through his comedic yet serious analysis, Oliver advocates for recognizing immigrants' humanity and pursuing more compassionate immigration reform alternatives.