Having China, Russia, and Iran next to Israel spells disaster for that nation.
How does inviting in the Chinese and Iranians help protect Christians? China and Iran persecute Christians, and the Russians barely tolerate anyone who is not of the Russian strain of Orthodoxy (if the are not atheist due to the past).
Hardly, if you are referring to Israel. The onus is upon the triad, you mentioned. They will have the reward of diminished return.
You’d prefer ISIS to be there, instead?