Okay, well, this is a massively warped version of history, especially the suggestion that Ireland was made independent prior to the partition. This is what actually happened:
In 1914 the Liberal Government of the UK passed the Home Rule Act. This Act determined that the whole of Ireland would have autonomous powers devolved to it. However, with the outbreak of World War I the Act was postponed and eventually abandoned due to the continuation of the war and events in Ireland such as the Easter Rising and Irish nationalists being discovered to be colluding with the Central Powers. Prior to the outbreak of war protestants in Ulster opposed to the Home Rule Act formed the Ulster Volunteers Force. Well organised, supported and armed, they formed a serious threat to the UK Government and at one point civil war was feared when British forces sent to Ulster to quell this unrest resigned, as the UVF were broadly viewed as patriots.
This threat ended with the outbreak of the war. The UVF were integrated into the British Army, and almost entirely annihilated in the Battle of the Somme and the German Spring offensive.
This changed the political landscape after the war. Politically it was no longer possible for the British Government to force Ulster, who now had nationwide support, into the Home Rule Act as originally envisioned as they had essentially sacrificed an entire generation of men for the UK. This led to the 1920 Home Rule Act that partitioned Ireland into the modern North/South divisions, both as self-governing units but with provisions included for unification under common institutions. The right to remain a part of the UK was left to Northern Ireland, which was immediately exercised.
The Irish War of Independence broke out (not sure what OP is referring to when he says voted for independence) and Home Rule was never enacted in the South. The war resulted in the 1922 Anglo-Irish treaty that established the Irish Free State.
I feel this is a much more honest presentation of the facts that resulted in the partition of Ireland into the UK North and the Republic of Ireland South.
So what are the differences and similarities between the partition of Crimea and Ireland? Well...
- Approximately one hundred years, in which two World Wars, the Fall of the British Empire, successful peace agreements between the states of the UK and the ROI, the spread of democracy and the spread of international institutions and law have taken place.
- The fact that the partition of Ireland occurred in a single sovereign state - the United Kingdom, whereas Crimea is an example of one sovereign state annexing the territory of a second sovereign state
- The OP's sole similarity appears to be that the majority of both NI and Crimea appear to support both actions respectively.
Really, a terrible, ugly, and idiotic nationalistic post that presents some of the worst attitudes that have given British-Irish relations so much tragedy in the past hundred years. It is good to live in a time where views like the OP's have been reduced to an increasingly impotent minority.