Double citizenships should be revoked you are either with them or with us they shouldn't have saying in this countries matters.
Let's just say, someone somehow significantly contributed to your state, a lot more than any of us could do in our lifetime.
Let's say a genius scientist or something like that. Now if Turkey revoke his dual citizenship the state will probably no longer benefit from him.
What would you do?
And it is also goes the other way too.
In a highly globalized world dual citizenship is a normal phenomenon.
And I tell you why, because thanks to capitalism, sadly state and country is not our first priority anymore.
When anybody has a chance to move out to Europe and america for better life he will do it without too much thought.
Quest for Individual financial comfort and chance to have a nice life replaced the STATE as our first priority.
Unlike the Constitution of some countries, the Constitution of Bangladesh requires no amendments to afford voting rights to its citizens living abroad.
I think it is may be one of the ways to go if you want more restrictions on voting rights, rather than completely revoking the dual citizenship.