First I mainly agree with you: I lived in Britain as in immigrant for a decade, which was preceded by a decade living in The Netherlands, and my opinion of Britons (especially the English, more so their upper middle class and above) is very negative by comparison with my opinion of the Dutch in general and my impression of British society by the time I left was basically "The country of Europe closest to Fascism, only it's disguised with posh bollocks from posh people with a posh accent".
However this shit the current government is doing there of arresting people demonstrating against the Genocide as "terrorist supporters" doesn't have the support of most of the population. Further, 1.5% of the people of a country coming out in a demonstration for the benefit of completely different people and in no way whatsoever for their own personal benefit shows that at last that many people over there have incredibly strong principles.
It doesn't prove that most people are quite that good people, but it still seems to me that most aren't quite as bad as being deemed uncivilized.
As I see it, the point you're making is really that pretty much the entirety of the non-elites there lack a spine, both as people and as a group - hence not doing much to overthrow the power structures of that country - which is not the same as not being civilized people, though as we can see both path lead to similar outcomes in situations like this one.
Frankly, I couldn't agree more with that view! Countless experiences I've had over there speak of subservience towards the upper classes and even towards society in general (the level of concern with "what will other people think of me" there, especially amongst Middle Class women, is quite extreme when compared with, for example, the Dutch) and maybe explains why they're so good at Theatre: a lot of people over there spend their lives behind a thick complex façade so it's unsurprising when so many make a hobby and even a profession from it.
Further, they're relentlessly indoctrinated with both Nationalism and Respect For Authority (in other words, for the elite dynasties) by the local Press, which is maybe why the Brits are actually the least trusting in the local Press of all of Europe.
However, lack of a spine - which in my opinion is mainly a learned trait from growing up in such a society - though not exactly positive in Psychological and Freedom terms, isn't the same as being uncivilized.