this is vaguely related to the string theory related post from a day or two ago, it's all bazinga science folks TL;DW string theory is a big thing because people that read pop science really liked it and it took a long time for physicists to come out in force and say "this is untestable garbage"
Pickle Rick was the writer directly insulting those people. The joke is that there's no joke, Rick turns himself into a pickle and acts like it's a major accomplishment to get out of a social engagement. Morty immediately sees through this and Rick is left screaming Pickle Rick while a disappointed Morty walks away.
There's not much you can do to tell these people that the things they value in Rick are actually really horrible traits that hurt Rick and everyone he cares about.
The show is a money printer fueled by blue curtain admiring toxic fans at this point, so because of the pressures of capitalism and the personal ideology of Roiland and Harmon, of course the invincible godlike atrocity enjoying sad man will continue escaping lasting permanent consequences for his actions.
If Rick actually died or was replaced as the main character because of lasting consequences, that would put off much of that fandom but those that remained would stop gobbling up the RICK IS BASED ACTUALLY messaging because he wouldn't be there continually feeding it with presence and screen time.