Or maybe I have seen the actual shortfall of reneging on public promises in
three different continents. I'm not talking the internet.
I've been there.
https://www.theguardian.com/commenti...tory-landslide
I mean, I didn't go from "Catalan separatist to Vox supporter overnight", just like I didn't go from "anything right wing in Latam is awful" to "Santos is the greatest statesman the region has had in Millennia". You look at the mood before you jump. In Corbyn's case, he alienated the Leave constituencies, whereas the Remain ones were already decided.
I will just say this: go back to the center and your party dies. It's really that simple. This isn't the end of history years: you either pick a "ride or die" side or just roll over and die altogether.