Removing the Kaliningrad infobox image solely based on your opinion shows that you don't know what Polandball is about, so here's the article on Polandball, which states it displays satirical personalities based on national and international opinions & stereotypes of countries. I know for a fact that Aztec culture is very prominent in Mexico.
Also, the wiki rules explicitly state "changing the infobox image of a countryball is only allowed with approval from a moderator or if the new image has a better quality than the previous one". In other words, in this instance, the rules don't care about your opinions.
By the way, you stated that "'my [meaning you, Wildsbaths] opinion' is a reflect of your sh*tty adminship". In that case, if this immaturity keeps on going, things aren't going to end well for you. Just saying.