Maybe more stupidity on their part.
The only reason the left has been getting away with these crimes involving assault is they happen in leftist strongholds with leftist (communist) leadership protecting them.
When the field is leveled and we too have lawful protections preventing us from being arrested for protecting ourselves; the criminal leftists who commit assaults will be leveled (permanently) as well.
Being the cowardly bullies they are; the other leftist thugs will fold like a dropped wet sheet. They will find themselves alone in the wilderness because no one likes a bully. The rest of the cowardly roaches will crawl back into the cracks they came from grumbling something about fairness.