I'm curious about Varadkar's tactics.
I can see that he wants to cosy up to Juncker et al in the hope of getting more cash or will it be loans which are already pretty high. However it is his citizens and small businesses that will feel the brunt of a dislocation with the UK. How does he propose to get this cash (when or if it ever comes) to these families/small enterprises quickly. The UK has always played a pretty straight back with the Republic so I'd have thought he'd want to play a careful long game. If the UK starts to adjust corporation tax and import duties to become attractive to RoW I could see Ireland being one of the first casualties. Does he want to keep operating under the UK's defence capabilities?
Perhaps he's just in it for himself and wants to get on the EU gravy train by being a good boy. I've a feeling he may be backing the wrong horse (mind you the racing has stopped at the moment because of equine flu) especially if the EU changes it base language from English as Juncker has wanted for some years he may feel an outsider / outpost.
I'd guess its about trade. Ireland's biggest trading partner is the UK. He won't want Irish goods to face tariffs/checks, including checks on goods travelling by road through the Uk to the EU.
As for his popularity at home; I'm not sure he's that popular. Maybe he's lining himself up for his next job as EU commissioner.