This is just a partial listing, just drawn from the last couple of years, and only includes premeditated incidents:
2Lt Richard Collins, stabbed to death in Maryland by a white supremacist
Timothy Caughman, killed by a man who traveled to NY as a “practice run” for a campaign of killing African-Americans.
Arrest of a man in SC planning an attack on a local synagogue.
Plot to bomb a Bureau of Land Management facility in Arizona.
Plot to bomb an apartment complex in Kansas to attack the local Somali immigrant community.
Four members of a far right group charged with plotting to incite violence at political rallies in multiple states, resulting in assaults of journalists and protestors.
Four men convicted of assault in the bloody beating of Deandre Harris in Charlottesville, the day another domestic terrorist drove his car through a crowd. One of those guys was wearing a MAGA hat, btw.
May 2017, 2 killed and one injured attempting to intervene when a man was harassing two Muslim girls on a train in Oregon.
Guy in Kentucky shot and killed two black people in a grocery store after trying and failing to enter a predominantly black church.
A married couple of bigtime MAGA types planned and carried out an attempt to provoke violence at a Milo Yiannopoulos event. The wife ended up shooting a peacemaker in the stomach.
Tree of Life synagogue shooting, where perpetrator was motivated by anti-Semitic conspiracy theories involving immigration and migrant caravans. A wanna-be copycat was subsequently arrested in Ohio while trying to purchase guns from an undercover agent.
Member of the Atomwaffen Division, a violent white supremacist militia, arrested with bomb-making materials.
Another member of the same group charged with killing a gay, Jewish college student.
Another member of the same group killed his girlfriend’s parents for denigrating his extremist beliefs.
Misogynist murder of two women in a yoga studio in Tallahassee.
Six killed and 19 injured in a shooting at a mosque in Quebec City.
I can keep going.