What does Ezekiel 44:7 mean?

You let people who had no right to be here—uncircumcised in heart and body—come into my sanctuary. They treated my house like it was nothing, even while you offered food, fat, and blood. You broke my covenant by letting them in. Ezekiel 44:7 - Modern Text Bible

(God is confronting the leaders for allowing outsiders, who didn't respect or belong to God's people, to enter the temple and disrespect sacred things.)