I did not strictly define sovereignty in my post nor allude to any other definition so how you can make such a blanket statement is beyond me.
Instead of using the word "conflict" try thinking of the difficulties in aligning large complex structures such as the legal framework of the EU and UK as a challenge to be met only by those worthy.
Obviously those with separatist mentalities will simplify that to "we can't be bothered" or "it is up to others to appease us!"
You have no need to inform me of the "frosty relationship" I am old enough to have witnessed much of it, mostly presented by the idiot tabloids who have held a persistent campaign against EU/EC membership since it's advent, of course those same media were in the pay of those with most to gain from a divide and conquer strategy worked upon the less informed masses.
You inferred sovereignty would be lost re UK, then gained via the EU. Exercise highest authority over a state or jurisdiction, the alpha and omega. Neither party understands how to untangle the complex innate power-justice systems which make up civic society of the other. Utterly pointless. Peace and trading is as good as it ever be.PS sorry forgot about the "special relationship" we have with the US as announced by Mr Trump about the same time Ford announced the massive job losses in the UK, lot of good that relationship is.
I think the media just represent the two sides of the same coin, a tabloid merism.
I think the relationship between the US and UK started long before trump. The US was originally a arm of the UK, until they broke free via the war of independence. The two parties have been allies ever since.