Please elaborate more fully. Modernism has been condemned by several Popes, and upheld as contrary to Catholic teaching. While that does not stop individual schools of Modernist thought from attempting to change Catholic teaching, and as was the example of Pope Paul VI, and Pope John Paul II with the case of Fr. Hans Kung in trying to correct him before removing his faculties to teach as a Catholic Professor, out of hope and charity that he would reform his heterodoxy. However the fact that Fr. Kung did continue to publish his works before and after his faculties were suspended, does not make him an official voice of the Church. Nor do the writings and voices of other individuals who espouse Modernist teachings.
All in all we need to (in my opinion) pray daily as our Lord did, Ut Unum Sint, That we all may be one. If we do so without an agenda, I think the Holy Ghost will soften our hearts so we can be One Church with One Head.