"Because they truly believe that might makes right.
When they tell you who (and what) they are ... . Believe them."

There has always been a violent element in the anti-abortion movement:

From 1977 to 2020 in America, anti-abortion activists committed at least 11 murders, 26 attempted murders, 956 threats of harm or death, 624 stalking incidents and four kidnappings, according to data collected by the National Abortion Federation. They have bombed 42 abortion clinics, set 194 on fire, attempted to bomb or burn an additional 104 and made 667 bomb threats.

Pro-Choice Protesters Attacked And Threatened As Roe Demonstrations Continue Into Day 2

In Iowa, a truck driver plowed into a group of protesters. In Los Angeles, a cop shoved a journalist. In Mississippi, men harassed volunteers at an abortion clinic.