Perhaps nowhere else (1 Corinthians 15) is Paul so binary in his description of the messianic kingdom, a plain fact which modern commentators surreptitiously avoid. Modern inaugurated eschatology presupposes that flesh and blood does indeed inherit the (partially realized) kingdom of God. Of course, modern realized eschatology and first-century realized eschatology are different (they have different eschatological reference points), but they do similarly presume that mortality can inherit the kingdom of God before the Parousia. 

Paul’s response to both would be the same: “flesh and blood cannot inherit the kingdom of God.”  -John P. Harrigan