Having lived through (most) of the blitz(I was away fighting for a good deal of it).I can say that "Blitz Street" may make good TV,but it is really a cleaned up/sanitised version of the blitz and not really like it at all!
As for your statement "That generation got on with it. They helped each other, and the more they took, the stronger and more determined to withstand the onslaught they seemed to become" made me laugh(in an ironic way).
Why?
SOME helped each other,the more well off still had money,savings and their own means of keeping their heads above water.
Working class people who were bombed(and who in general rented their homes) had nothing after being bombed out,they had to depend on friends and relatives for help and accomodation,there was no real government help(long term).
Even so there were many black marketeers who could get items that were in high demand but low supply.Again,fine for the middle and upper classes,but the working class could not afford such luxuiries.These black marketeers were known to the Police,but nothing was (usually) done as it would have admitted their existence and damaged morale.
"The more they took,the stronger and more determined they became"?
Wrong!
At the end of the war Britain's morale was rock bottom,People can only take so much before they start to crack.Again the working class was the one who's morale suffered most. If you can find any reports online from something called Mass Observation,you will soon see how low Britain had sunk come 1945.