We build our family house and then we do something in order to beautify it. And restore it when it is dilapidated.
Christ build a Church and then we are lazy in doing something in order to make it a nice Church. When problems arise, we are lazy in cooperating to solve it. Why? Is it because we allow Satan to make us feel the Church is irrelevant?
If the Church is irrelevant why is it Christ's apostle St Paul, declared, that the Church is the Pillar and Foundation of Truth? (1 Tim 3:15)