And what you don’t understand is that Priest is given the authority to do just that within the walls of his church or house as you put it. You are equating the church as a whole from Vatican on down when you say “clean house” all that is above that Priest’s paygrade so to speak. Now if that Priest’s church is in order or house as you put it that he is personally responsible for then the Catholic Church as a whole grants him the power to do just that to anyone that walks within his church. He would have done that to anyone and most likely has done it to others, but biden is a public figure so it hit the news. Has the Catholic Church had issues yes it has, but they still give Priests that authority do deny communion. It’s like saying “yes there are bad cops, but before any cop can enforce the law they have to clean their own house first” in a utopian society we could do that but this is reality. There are bad cops but cops are still charged with enforcement of laws even though there are a few bad ones. One does not negate the other.