The last Labour government for some supporters was in the 1970s
The last Labour party probably in the 80s 
For some they don't want a conservative mark 2 version though others in the party do because they see it as a career vehicle with little to do with the aspirations of its members , it's their party in their view, not that of the members, as Watson indicated
It's there to serve the sons of Benn, or Kinnock in their dynastic ambitions, probably in due course a Blair , or others seeking the same

At the time of the failed coup I read Watson's timeline 
About 80 90 % of the comments were negative, some calling for his resignation , some regretting they had voted for him in the first instance ...few supporting him
They were not 'trots' as he claimed , blindly following something they didn't understand according to Watson's view at the time
They listed their occupations incl teacher, lecturer doctor, engineer, lawyer 
They wanted a choice and despite the odds JC seemed to offer them that 
No, some within labour want it to be as close to conservatism as possible, others do not 

It's a kind of view within the party that says if the electorate get tired of voting conservative they will default to us easier if we look & sound the same. They aim to 'win'  by default when the electorate  get tired of the  other party

Tribute bands have their place, but essentially playing second fiddle isnt that rewarding 
Having two very similar parties isn't much of a choice nor does it helps democracy

There is a hostility to him specifically about what some see within the party as a loss of their control