. . . with the Roman Catholic Church
Among those churches which are not members of the WCC, the most notable is the Roman Catholic Church (RCC). Since 1965 a Joint Working Group (JWG), co-sponsored by the WCC and the RCC, has met regularly to discuss issues of common interest and promote cooperation. The group meets annually. One of the church and ecumenical relations staff members serves as co-secretary for the JWG and helps to coordinate contact between the Council and the dicasteries of the Vatican through the Pontifical Council for Promoting Christian Unity. [And] . . . Though the Roman Catholic Church is not a member of the WCC, it is a full member of the Faith & Order Commission. The RCC also serves the team on Mission & Evangelism in a consultative capacity.
Are you buying into this propaganda? You listed liberal churches that have been infiltrated by folks with a different agenda than glorifying God.