@m4ng4 if your looking for examples of the church being bad and the demon king being good type of stuff you have. "The Rising of the Shield Hero", "The Abandoned Hero is Going Home", "Foundation of a State in Another World With a Hand-Built Colony Village ~Carefree Life on an Uninhabitated Island With an Increasing Number of Brides~", "Black Demon King", "Demon King, Retry!", "Negative Hero and Demon King's General", "Chronicles of My Adventures in Another World With Kawazu-san", "I'm a Villainous Daughter, so I'm going to keep the Last Boss" and much much more these might not all have the exact feeling you were asking about but alot of them are the "good guys" are actually pricks and the "bad guys" are being forced into it/ fighting against them/look what i have to put up with. not all of these are perfect examples and some of them are more just side info(ie Chronicles of My Adventures... school girl warrior or w/e her name was tells mc that the church enslaves the isekai heroes they summon, shield hero is treated like literal garbage while the other 3 heroes summoned with him are treated like heroes).
sorry this was a bit ranty and maybe off topic of what you guys were talking about, wrote this while really tired and this was just a quick off the top of my head and a look through my list for title names.