Yep, Island Man, but remember, Jesus had to start his own religion. He couldn't reform the Jews because the Jewish leaders wouldn't accept him. And if he came today as a man, established religions wouldn't accept him, either. Established religion has too many people at the top to ever accept anyone. If a prophet were to announce himself today, what religion would acknowledge him (or her)? Ellen G. White had to start her own religion because no other church would accept her visions and declarations. If a prophet came and identified himself as such to the Jehovah's Witnesses, Catholics, Western Baptist Convention, Methodists and others, none of them would accept him or her. Why? Because they all have leaders or he would teach things they didn't believe in.
That's why God wouldn't choose an existing religion. Also, this concept of a never ending Hell is hardly "Christian" in its teaching, is it? If YOU don't choose your religion correctly, you end up burning forever, for countless trillions of years. Why? Because YOU chose the wrong one. I've heard many preachers tell congregations they were in danger of hell fire because they only believed in Jesus; they didn't have the right kind of relationship with him. And for that they must suffer forever, because of one mistake...choosing the wrong religion. Christianity 101 states that 1) Jesus is the great judge of mankind; 2) he's just, merciful, kind and loving; 3) he's God in the flesh.
If God would throw you into such a place just for making a simple mistake, He's hardly just, merciful or kind, right? So with all the other churches teaching HELL in such a manner, it makes God choosing one so much more difficult. Most, I think, would be repulsive to Him.