The church of Jesus Christ exists on earth. It is just not limited to the edifices Rome builds. In fact, it very often shows itself not to be found there at all, due to the many idolatrous beliefs Rome encourages.
All who have been graced by God with true faith in Jesus Christ as Lord and Savior are members of His church.
“All who have been graced by God with true faith in Jesus Christ as Lord and Savior are members of His church.”
Assuming this is the Church of Ephesians 1, 2, 3, etc., Colossians 1, etc., yes, of course, that is true.