"It is not that English is ambiguous, it is that so few people choose to use the correct words to give the specific meaning they intend to convey.
The diversity of the English language allows you to choose exactly the right word(s) to convey your meaning clearly, but is lost on those who believe that any word can simply be replaced by any other which appears under the same heading in a thesaurus."

Very pompous.

So we're not all professors of English here, nor are we writing legalise. What's more, it's possible to be in a hurry and post with insufficient proofreading, and, as I know to my cost, it's possible to temporarily lose one's reading specs. You need to learn to live with it, Nigel. Your own use of English, stiff and colourless as it is, is far from perfect and nothing gives me greater delight than pointing out the failings of nitpickers such as yourself and one or two others here. To see the biter bit is a delicious experience. To avoid being in that unenviable position, just tell us what you think about brexit, etc., and ignore the occasional human failing. As has been pointed out to you, it's perfectly easy to glean what people really mean.

As for Corbyn, he's one of those few incorrigible old lefties who haven't changed their stance since the 70s and 80s when to be a leftie meant that you were anti-Europe. Around 90% of the half-million extra members he attracted to the party after his election are pro-EU. You might expect them to be mostly lefties, yet they are not for brexit. I was rigidly anti-EU meself for a very long time but like most lefties I've seen the light. It's my guess that even Tony Benn would be pro-EU by now were he still around.