"Generally speaking Europeans are multilingual, we are not."
Totally varies from country to country doesn't it. Yes, most are better than the UK, but language skills in France can't be compared with those in the Netherlands.
"They seem better connected with each other in the continent than with us."
Again, it depends. Scandinavian countries are well-connected, but you can't say that Belgians are better connected with Greeks, for example than with the UK.
"We have a different legal system to the rest of Europe"
I suppose you mean civil law versus common law, but still it varies a bit from country to country.
,"we drive on the left unlike the rest of Europe"
as long as you don't count Cyprus and Malta as being part of the rest of Europe
"we use miles, yards, feet and stone, they do not,"
We have also used metrics for a very long time.
"and now being out of the EU we are also outside of their Parliament."
Well, yes, but there are also many other European countries that are not in the EU.
The UK is not exceptional.