Well, the "secularization thesis"is now largely discredited. Christianity's growth has been explosive.
There are now six times more Anglicans in Nigeria alone than there are in all of the U.S. There are more Presbyterians in Ghana than in the U.S. and Scotland combined. Korea has gone from 1 percent to 40 percent Christian in a hundred years, and experts believe the same thing is happening in China. If there are half a billion Chinese Christians fifty years from now, that will change the course of human history.
Now, because of the vitality of religious faith in the world, efforts to suppress or control it often serve only to make it stronger (ie. when the Chinese Communists expelled Western missionaries during WW II, they thought that they were killing off Christianity; instead, it just strengthened it). Robust religious beliefs dominate the world. There is no reason to expect that to change.