Prosectors Say the Kansas Shooting of Garmin Engineers Was a Hate Crime (theverge.com)
An anonymous reader quotes a report from The Verge: Federal prosecutors have filed a hate crime charge against 51-year-old Kansas resident Adam Purinton, according to the Department of Justice. Purinton, who is accused of shooting three people in an Olathe bar, reportedly told a local Garmin engineer to "get out of my country" before opening fire. Purinton is currently being held on first-degree murder charges filed by local prosecutors. Today's indictment accuses Purinton of committing murder "because of Kuchibhotla's actual and perceived race, color, religion and national origin," with additional charges for the attempted murder of Madasani and violations of federal firearm statutes. The Justice Department declined to say whether it will pursue the death penalty, although it is authorized by the hate crime statute.
When the crime is committed on the basis of victim's group identity, the other members of the group have reason to fear being targeted for the same reason and there are more victims. More victims = more punishment.
These laws are intended in part to prevent civil unrest (in the form of race riots) that can occur when one community perceives they are being targeted and law enforcement is not adequately protecting them. They (understandably) may take law into their own hands through mob violence and then we're in for full scale civil unrest (because mob justice is rarely so.... "just" and is more likely to create the same kind of racial hostility in return.
The motive matters because when that motive is animus towards a large group of people, the consequences of group-level retaliation are bad for all of society.