Here's my view for what its worth.
Firstly, i'll state fact. Kirkby is in Merseyside - comfortably in Merseyside. It will still be a Merseyside derby.
Another fact - we sing (or used to sing) "We're the Pride of Merseyside". Talking about Kirkby like it's Wigan or something makes you, as an Evertonian, a complete hypocrite and upset an awful lot of Evertonians who are from Kirkby and as scouse as anyone living on Shiel Road.
Another fact (which I know for certain as I made the journey today). Kirkby is 15 minutes drive away from Goodison - and thats one main road basically.
Also, how about a comparison. Would you stop loving your kid because he/she moved out of his/her home to get a new house with his wife/husband? Of course not. So why stop loving Everton simply because we're moving?
Here's some perspective I guess - Goodison Park is a building that, whilst being heaped in tradition, is crumbling apart drastically. It's time to move forward.
And Kirkby (i'm afraid those anti-Kirkby will never seemingly accept this) is as scouse as the docks.