WI: No 1800 Act of Union

The Act of Union of 1800 (carried into law in 1801) upgraded the personal union between the kingdoms of Great Britain (England plus Scotland, united in 1707) and Ireland into a full political union, forming the United Kingdom of Great Britain and Ireland. By this treaty, Ireland's parliament would be abolished, its peers and MP's added to the british parliament in Westminster.
But what if the Act was never approved, and GB and Ireland remained de facto separate for the time being? What could and would happen to Ireland?
(I hear that a good PoD for this would be having George III die in 1794 -- during his period of illness, there were concerns that he would die, and the british government planned to install IOTL's George IV as protector of Ireland)
 
Bumping for interest.
Would Wolfe Tone's rebellion have to be butterflied away?

Probably - the Irish Rebellion was what convinced Pitt that a Union of Great Britain and Ireland was necessary (as a shameless self-plug, that is the POD for my timeline, For Our King, Liberty and Laws).

As for the impact, if the Acts of Union are never passed, then Pitt will certainly remain Prime Minister. And if Pitt is still at Number Ten, then there is no Addington Premiership and therefore there is no Treaty of Amiens, meaning that Britain and France would remain at war with one another, and consequently the French Revolutionary and Napoleonic Wars would be considered a single conflict.
 
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