As much as anything, GB are still reflective of a certain position in this country otherwise they would have to audience to begin with. Whether you like it or not. They don't create that audience magically. There was a demand there already because of this sense of not being served by the mainstream channels. Where you have that you need to reflect on what the mainstream channels are failing to do - especially given the BBCs remit is effectively to represent all views and political positions.
With this in mind, it's also worthwhile to listen to, in order to understand what is happening and going on in this country. People with views you don't like think something for a reason. Their issue is very often a very valid one, but the reasoning for how they interpret the world around that issue may differ and be one you don't like.
Take immigration. Does the UK have a problem with migration. Some people say no, it adds to this country etc etc. Others will say it's taking away from British people. Arguably as migration has increased social mobility has reduced for some socioeconomic groups. Are the two connected? I think it's hard to argue it's not. Do I personally think this means immigration is wrong and should be stopped?
No. I do think that this divide about racism takes the focus away from the practical issues such as whether education and training is good and whether enough support is given very early on to kids from families with no aspirations. I think it takes away from conversations about an aging population and how we are handling that. And there's the bitter one about our dysfunctional house building and planning system which is so dominated by NIMBYism.
It becomes easier to shout and scream across the divide at the identity politics rather than get to the heart of the matter about where there are problems, about how cultural issues do actually matter whether we like it or not, and how we find ways to find solutions to these issues that benefit everyone.
If we were doing all that the opportunities for the far left and far right would be fewer as they'd be less dissatisfaction to feed off.
What it comes down to is political echo chambers have allowed us to stop listening to 'the other side' and in doing so stop us from learning to understand the full nature of our society's problems. We only see a problem from one angle so never fully grasp it, so we can't adequately deal with it.
If you don't understand the law of unintended consequences, you don't understand politics and you are unable to produce solutions.
This is about communication. All of it.
GB news isn't going anywhere. Even if Ofcom shuts it down, it'll just spring up in some form online. For a reason.
It's said that you can best fight your enemy, if you understand your enemy intimately. This applies here. Instead of going down the route of ban everything and censorship, work out why banning everything and censorship doesn't work (clue: this is also about truth and power and abuses of power).