Bala saheb started regional politics in the name of outssider issue.
When he realised that they can not get the power without outsiders support, he dumped that issue.
Afterall what Maharashtrian got from that movement.
Now same thing Raj is doing. Now since he is almost zero he is raking up this issue. After some time when he will find that without outsiders he can not make it to top, he will leave the issue.
And who will be fool here ? No prize for guessing.