I think they are suggesting, tongue in cheek, that liberal propaganda is encouraging some tiny cellular being to shift from cis to trans. What the illustrator actually intended, I have no clue.

Something like this:

Biosynthetic cargo proteins enter the Golgi at the cis face of the stack and depart from the trans face (Farquhar and Palade 1981). During passage through the stack, biosynthetic cargo proteins undergo glycan remodeling and other modifications (Ruiz-May et al. 2012; Stanley 2011). Complex polysaccharides are also synthesized within the Golgi (Dick et al. 2012; Parsons et al. 2012). The trans-most cisternae are designated the trans-Golgi network (TGN), and are responsible for packaging biosynthetic cargo proteins and polysaccharides into transport carriers for delivery to downstream destinations