Secondly, Ireland doesn't even have a blue line, which implies it is connected by land to Britain
And thirdly, Wales and Scotland should really be acknowledged, and at the same time you might suggest Northern Ireland as well.
The map shows the country "United Kingdom of Great Britain and Northern Ireland" (UK) without separating its constituent countries. This is what most political world maps do.
Ireland does border by land to the UK, at the border of Northern Ireland. This is shown with the black line.
Also it borders to the UK and all of the world's ocean bordering countries which is shown through the surrounding blue.
> the British isles
Many in Ireland[1] would consider that a rather loaded political term rather than neutral geographic one, and wouldn't use it to refer to Britain and Ireland.
> Secondly, Ireland doesn't even have a blue line, which implies it is connected by land to Britain
It's connected by land to the UK. Maybe there should be an additional blue line to denote the Irish sea, but it wouldn't exactly add any additional borders to the map, as GB is also an island.
> And thirdly, Wales and Scotland should really be acknowledged, and at the same time you might suggest Northern Ireland as well.
Why? The UK as a whole is already there. Ireland is a sovereign state in its own right, unlike Scotland, Wales and Northern Ireland which are just constituent parts of the UK. Do you think every US and German state should be there as well?
[1]: https://en.wikipedia.org/wiki/British_Isles_naming_dispute
And that last sentence is an extremely revisionist view of British history.
The weird thing about Wales and Scotland is that they complete independently in sports stuff not that they are excluded here, they are integrated parts of the UK with the same amount of autonomy as a large U.S. city.