Normally I like to think of myself as a gentle, diplomatic person who tries to bridge gaps and break down communication barriers. To that effect, I generally avoid throwing around names, blame and anything similarly antagonizing wherever I can.
A week ago a common catchphrase was "If Hillary doesn't win I'll vote for McCain". Today it's "If Hillary doesn't get the VP slot I'll vote for McCain" when it isn't "Because Hillary lost I'm voting McCain". I have a brief message for all the people expressing these notions.
This is not because voting for McCain is idiotic per se, but because the implicit motivations for doing so are. None of the people I've seen making a big deal about voting for McCain in place of Hillary are doing so over policy or presidential potential.
I have plenty of Republican and moderate friends who can and will make an excellent case for voting for McCain over Obama. One of the reasons they will not give is "because I'm whiny over Hillary losing". That's a ridiculously stupid motivation, and it's equally disrespectful to all of the candidates involves.
You might dispute that this is the reason you're declaring that you'd never vote for Obama, but if that's the case back it up. Put some bite behind your bark because otherwise you look like a political idiot. Obama's policies and positions are too similar to Hillary's for people to assume you know what you're talking about when you leave it at "Obama sucks, I'm voting McCain".
There are bound to be people who are switching from Hillary to McCain with a sane mind and reason, but I highly doubt they're the ones making a big stink about their choice.
In conclusion, get over yourselves and the primaries, then make an informed decision this fall.