Thing is Jom you don't put up any facts, you put up ill-informed and biased opinion and present it as fact. Thing is Jom you don't put up any facts, you substitute conjecture and present it as fact. Any time that you do actually put up a fact it will be responded to.
The executions Jom were the sentence demanded by the law for anyone found guilty of treason in time of war. As for mobilising the Irish people? It managed to mobilise what percentage of the Irish people to take part in the Irish War of Independence - 0.48%, the deal negotiated to end the War was not universally accepted and the country slipped into civil war that managed to rouse the interest and participation of only 3.33% of the Irish people.
As for the British Empire Jom, the events of 1916 and 1921 had nothing whatsoever to do with its demise, that is mere conjecture on your part. That Empire Jom carried on for another half a century and demonstrated that an Empire can be ended through peaceful transition, its strength is still in evidence today as represented by the second largest international body in the world after the United Nations - The Commonwealth of Nations consisting of 53 sovereign member states most of whom were former British Colonies or dependencies. This transition occurred during our lifetime Jom and guess what? I didn't hear any crash.
Oh dear Jom have you just found out that politicians are dishonest? That they will do anything to get a deal? What planet have you been living on? Talking of honesty Jom your leaders of 1916 weren't exactly honest with their followers were they? de Valera wasn't exactly honest with Michael Collins was he?