Logic of disenfranchisement!

When Castro was urged to free up Cuban politics and allow democratic elections in his country he flatly dismissed saying, “Cuba is not for sale.” His euphemism is understandable. He knew that in the event of allowing the Cubans any freedom of choice he ran the risk of losing his more than half a century-old job. He had Churchill's fate in mind. People don't stomach the same old stuff again and again in a democracy.
When the outgoing Canadian High Commissioner asked our law minister to hold dialogue with the BNP for a meaningful election in the country, he ruled out the possibility in the same Castro style snap. He echoed his boss that the BNP leader doesn't believe in the country's independence and rule of law. (Ref: The Daily Star, Dec11, 2014) Is this good logic to deny people their voting right? The irony is, without disenfranchising the people no one can perpetuate his grip on power. This is not what we fought the Liberation War for.