True but I think he's missed a HUGE opportunity to smash them.
Another 5 years of them in power is a looong time
I don't think there's a cat's chance in hell that whatever arrangement comes out of this will last 5 years, so he may get a 2nd bite at the cherry sooner rather than later.
But, coming off a higher base, I do think that he will find it more difficult to make further inroads at the next election. The expectation will be higher, for one thing, and that in itself creates problems.
Also, I don't think that there's much more he could have done. I actually think that part of Corbyn's appeal has been that he's been such an underdog, and you know how the British people love an underdog. And the youth vote, while amazing, we all know how such large bursts of political energy are difficult to sustain, as we have seen with the SNP falling back. So, I think Corbyn did as well as he could in this election. I'm not saying that he couldn't make further inroads next time around, but it will be more difficult.