Equally ridiculous the other way however. The stupidist thing Labour did was force Corbyn into a corner. It's safe to say there's a mood for change in the country, and that means moving away from Blair's policies and era. I remain convinced Corbyn is only in charge because he ended up there, and because nobody wants to offer a viable left-leaning alternative. I also remain convinced that if instead of outright rebellion against him, his MPs had offered an alternative, he'd have stepped aside.
Instead they fought, and because of that they see Corbyn's supporters fight back. This, rather than policy or personality, is why the Conservatives win more elections, they know they need to present a certain face to the electorate to do so.