Verbose
Deity
Nope, Sweden and the UK wouldn't unite.Imagine this scenario:
11:23AM 8th August 2008, Queen Elizabeth II dies peacefully after 56 years as Queen, she is succeeded by her eldest son, the New King George VII.
12:47AM 9th of August, King George VII dies from shock on his mother's death after 50 years as Prince of Wales and 84 minutes as King, he is succeeded by his eldest son, the New King William V
16th of May 2009, Carl XVI Gustaf dies dies peacefully after 36 years as King, he is succeeded by his eldest daughter, the New Queen Victoria I.
The year is 25th of March 2010, King William V of Britian is wedded to Queen Victoria I of Sweden in Holy Matrimony at St Paul's Cathedral, London. This marriage unites the Royal Houses of Windsor and Bernadotte along with the thrones of Great Britian and Sweden.
Scenario Over
Okay my questions are, would England and Sweden be united if such a scenario happen?
If so, how would the goverment be like?
And to all you Swedes and Britians out there, what do you think of such a marriage and the countries of Sweden and UK be joined together.
Victoria would be queen of Sweden, with Willie as her consort. After all, William didn't inherit the throne of Sweden, and he won't be made king and head of state simply by marrying the princess. Sweden is an equal opportunity gender primogenitur monarchy these days. The constitution was changed in the 80's to allow Victoria to become crown princess. (Never mind that daddy Charles actually expressed the sentiment that he would actually like to see his son Carl-Philip succeed him.)
I imagine Willam would be king of England, and allied trades, which might make Vicky queen, but not head of state.
But, there's a technicality regarding religion. In order to marry Victoria William would have to join the True Lutheran Church of Sweden. The CoE is just to damn Catholic for us polar bears, or rather for our monarch; he/she is required to be belog to the CoS according to the constitution (the rest of us can worship whatever we like, or nothing, as the case may be). Since I imagine a king of England, and his consort, are required to be CoE, this technicality probably rules out any matriamony, at least for the time being (possibly the eight years and two consecutive elections that are required to change any part of the Swedish constitution; not sure about how the Brits would deal with it).
As for whether I would approve of a UK-Sweden union... Well, nah... I'll take the EU. I fail to see what would be in such a union for Sweden, or the UK for that matter? Besides, English society is weird. The Scots us Scandinavians seem to abide better, but the English are weird.
Otoh the Swedish weirdness is such that I don't think the Brits can even start to comprehend it. Just ask the Danes, Norwegians and Finns...
(Oh, and don't you mean Charles III in your little scenario above, instead of George?)