T and U Visas protect victims of human trafficking, involuntary servitude, extortion, witness tampering, and other severe crimes. In all cases, victims must cooperate with law enforcement authorities to receive Visa benefits.
Eliminating these options would mean that traumatized victims would lose critical protection pathways, likely subjecting them to deportation and retraumatization. It would also hinder law enforcement efforts since victims have no incentive to cooperate.