Public transport in and around London is some of the best in the world, there’s even countless park & ride stations which can help with people who are genuinely too far from a station or bus stop to do the whole journey on public transport.
There’s no genuinely valid reason that 99% of people would need to drive in London at all really, just people feeling mildly inconvenienced and blowing a gasket over it.
Another big aspect though, is that we also have our deeply unpopular conservative party in power currently with an impending election where they’re expected to perform so badly, they’re potentially going to get banished to the history books. So naturally they’re stoking up a load of none-of-that-green-rubbish and i-will-be-dead-before-you-take-by-diesel-powered-child-flattener-from-me sentiment in the hopes it turns some of their previous knuckle-dragging voters back away from other parties. The result of this is people in Surrey with minimal intention of ever even visiting London already because of the Daily Mail’s conspiracy theories, complaining loudly online about all the woke militants imprisoning them on a train or whatever bullshit they spout.