When it seems that there is a concerted effort to divide the Judeo-Chrisian world, the question becomes, “Who benefits?”
I can think of a large militant religious group that would benefit by weakening any/all of the Jews, Catholics and Protestants. And the secular socialists/communists, as well...
Reading the Holy Scriptures, we know how the story ends, but we are certainly stronger, united, and can together help protect the innocents.
As your comment suggests, “who benefits” and who is responsible for doing it may be two separate groups. It is the left wing secularists who are working so hard to divide Catholics from Jews and Protestants, Catholics, and Jews from one another, because they THINK they will profit from the diminishment of religion in our country and in the West.
That is a false hope, of course. A western world without religion would quickly decay and fall to pieces. And the most obvious beneficiaries of that collapse, who would come in and pick up the pieces, are the Muslims.
We see the left cozying up to the jihadists constantly, because they hate their own country and its traditional values. They little realize what the consequences would be if they succeeded. They would be the first to go.