Going with the Oxford’s first sense here…
vul•gar vulgar | 'valgor | adjective lacking sophistication or good taste; unrefined
The vulgar bit is the image of laughing Gus with a sweeping statement on wife beating in Islam.
The passages dealing with how men should treat their wives vary among interpretations of the Quran, and there are vocal groups within Islam against domestic violence.
Fine. It’s still a shit meme though.
No.
Mass media good Muslim wife beater bad!