I don’t blame the Chinese government for having hard feelings, but on the other hand Japanese culture is so cool I can see why someone would be attracted to it.
From Language Log: You will note, in the bottom left of the cartoon, that the artist signs her name as "@Tachibanabuta". Tachibana, written with the kanji 橘 or 立花, is a fairly common surname in Japanese, and "buta" means "pig", so the artist is referring to herself as a pig ... The "Pig Nation Dream" (zhūguó mèng 猪国梦) cartoon probably didn't do much to help the artist's situation.
That photograph next to the artist's work feels like dishonest representation of her message and an insult to the individuals pictured.
 Flowerwall
                                                
                                                Level 7
                                                Aug 16, 2019
                                            
                                                
                                                    Flowerwall
                                                
                                                Level 7
                                                Aug 16, 2019                                            
                                        @altschmerz I think my first impression was my own projection. Really I don't know anything about this artist and her message. Still think it comes across as insult.
It seems the arrest is more to do with the anti  jingri laws than the cartoon specifically, and to be fair similar laws exist in Europe for holocaust deniers and Nazi glorification. There is a LONG history of hatred between the Japanese and the Chinese especially during the 20th century.
However though arresting a satirist is not on, nevertheless her activities seem not aimed at social change but at simple mockery and public outrage in which case she may have been better advised to have stayed in Japan.
 LenHazell53
                                                
                                                Level 9
                                                Aug 16, 2019
                                            
                                                
                                                    LenHazell53
                                                
                                                Level 9
                                                Aug 16, 2019                                            
                                        @altschmerz but often one is the root of the other
Cool cartoon … Unfortunately the emperor, the great Xi DaDa, is not particularly impressed by humour, especially when it targets social injustices.
 PontifexMarximus
                                                
                                                Level 8
                                                Aug 16, 2019
                                            
                                                
                                                    PontifexMarximus
                                                
                                                Level 8
                                                Aug 16, 2019                                            
                                        The article says the Chinese were arresting and punishing these sorts of social protest for years before they had passed a law against it. Funny ... the cartoon depicted what Chinese in the photo were doing.
 AnonySchmoose
                                                
                                                Level 8
                                                Aug 16, 2019
                                            
                                                
                                                    AnonySchmoose
                                                
                                                Level 8
                                                Aug 16, 2019                                            
                                        It was the mahong games they had in the aisles, that people completely ignored the seatbelt sign and regularly had lifestock in the cabin with them! Dragonair was one of the scariest experiences of my life!
 Amisja
                                                
                                                Level 8
                                                Aug 15, 2019
                                            
                                                
                                                    Amisja
                                                
                                                Level 8
                                                Aug 15, 2019                                            
                                        @altschmerz several times
Don't tell people that Spirit Airlines will hire you as head of cost cutting
@altschmerz I have never seen other than bipedal livestock on planes. On buses it's different. But I have only seen piglets and feathered animals on buses, never on high-speed trains. But I wouldn't be surprised that cheap trains carry passengers with animals.