That’s the inverse of “no true Scotsman”. “No true Scotsman” refers to the situation where you arbitrarily exclude people who you don’t want to count as members of a class, by saying “that isn’t really Christian”. In this case, you can arbitrarily include people who you do want to count, by saying that any non-Christian things about them aren’t really non-Christian.
Then every Christian can count as a religious Christian.
That’s the inverse of “no true Scotsman”. “No true Scotsman” refers to the situation where you arbitrarily exclude people who you don’t want to count as members of a class, by saying “that isn’t really Christian”. In this case, you can arbitrarily include people who you do want to count, by saying that any non-Christian things about them aren’t really non-Christian.
Then every Christian can count as a religious Christian.