This graphic tells the tale:

[Ken Burch]

Tells you all you need to know about "the rebels" and whose side THEY are on.

[Spider Jerusalem]

1. Apart from Corbyn himself...

the only members of the Shadow Cabinet as it was constituted on Monday voting against (many of whom were in Harman's interim Shadow Cabinet at the time) were Richard Burgon and John McDonnell. There's a reason for that; you don't put rebels who won't obey the whip on the front benches. Rebellious backbenchers are tolerated up to a point; rebellious frontbenchers are a sign of a party leader who's lost control.