bertsdinner I can only really talk for myself here, but I will be honest about why.
My unofficial adopted parents were Tory, I was raised thinking Labour was the anti rich party.
I'll be quite frank and say I didn't really look in to it much more. I've done well for myself and just kept voting Tory because they were 'my' party and I didn't trust labour (though looking back if you'd asked me why it would probably have been based on second hand gossip and the media)
During this election every clip, everything I read, confirmed that Corbyn was a joke, not a sensible policy in sight and a weak man.
Everything confirmed it until I saw the first live debate.
I couldn't believe it, I believed every word he said, he didn't look weak at all. He looked like someone who believed in democracy, compromise and actually discussing things like a grown up.
Very refreshing after the slang match, circus ring politicians I'm used to.
In contrast May looked weak, bumbling and shifty as per your usual politician.
Inspired by this I actually read Labours manifesto. It was fully costed, I'd taken for granted that the Tory's wasn't because I believed, for no particular reason, that they were the best with the money.
I realised that when I actually stopped being so biased, and read the manifestos again, and weighed up what they were telling me, that I agreed with corbyn.
(Corbyn - his policies and what he wants vs May - telling me what Corbin wants and why it's a bad thing but nothing big sound bites about what she wants)
Obviously we all think differently and not all will agree, but that is how I came to switch so rapidly.
(The second debate saw Dh and my in laws switch. Corbyn should never stop broadcasting
)