Then you can pretty easily ask: civil rights protests? Using speech--and violence!--but not violating that contract. They tolerate all who extend that contract to them. LGBT activists? Using speech--and violence!--but not violating that contract. They tolerate all who extend that contract to them.
The daily st-literalnazipropaganda-ormer? violating that contract. Suppress it. Destroy it. No platform should allow it. Nazis in Charlottesville shouting "Jews will not replace us"? violating that contract. Suppress them. Make them fear. They do not tolerate all who extend them that contract.