It’s talking about united doctrines and practices — not Jesus.
Did you miss this line?
But in recent years the term mainly refers to misguided claims that religious unity can be achieved by ignoring the differences between faiths on the assumption that all creeds are essentially one and the same.
"The effort to unite different doctrines and practices, ... "
is no different than,
" .. religious unity can be achieved by ignoring the differences .. "
They are essentially the same thing but semantically altered (and thus diverting "logic" ) to cause you to ask me to analyze the verbage.
Because it IS all about Jesus.