I don't think there is a solution if Britain actually goes ahead with Brexit.
I'm beginning to think hoping it won't happen though; Britain will Brexit in name, but remain part of the European Customs Union (something that lots of UK politicians seem to think is a good idea). Trouble is, keeping the Customs Union means keeping open movement of people (which the same politicians are trying not to talk about). If that happens it will all stay the same.
If, however, May stays in power (and grows some guts) there will be a hard border, we will go back to the bad old days of border checkpoints and closure of all the minor roads, along with smuggling,
especially petrol and farm related smuggling (remember those poor cattle and sheep who spent their lives crossing borders
).
The Unionists will pretend they are cross about it but will secretly be delighted that there is a border. Sinn Fein will lose their shit and yell at everyone - I wonder will it be enough for them to actually take up their seats in Westminister? The British government will try to blame Europe, and Ireland will (sadly) bear the brunt of the whole Brexit cockup.
Fucks sake, just what we need
.