The slogan refers to Meir Kahane, the convicted Jewish terrorist and founder of the outlawed Kach political party.
Baruch Goldstein was a Jewish settler and terrorist who massacred 29 Palestinians in the Cave of the Patriarchs in Hebron in 1994. Some Israelis still support him.
The Kfar Saba cafe received an outpouring of support after a note with the Kach emblem was sent to the owners in response to their attendance at an anti-government protest.
In a now-deleted tweet, Zehava Galon shared a photo of the Otzma Yehudit chairman with his right arm raised in the air.