They're more afraid of the cultural changes than of the cars themselves. If the supercars were driven and owned by white British people, they'd have gone and told them what they think, not just complained and filed petitions in their backs.
They're afraid, scared to confront the Arabs because they know how much wealth they are bringing in with their culture, and how much Britain needs it more than ever, they're also jealous that they need that outside income to survive.
Le Grand Prix de Montréal is the exact same thing for us here, how much complaining do we hear every year when it's that time again, "the noise", "the pollution" and whatever other sad excuse the jealous bring up to complain about that event when everyone knows it is a great source of income for the region, and makes us known and recognized all over the world.
People who complained in that video are just like the people who complain about the Grand Prix. Afraid of change. They like their little lives and want to live them exactly the way they have been because that's all they know and cannot adapt.
Good documentary, and some really nice cars in there. Thanks!