They pay taxes, serve in local bodies, work in the government organise events, own properties and companies, send their children to schools, etc, etc.
Are you suggesting they do not belong or that they do not have the best interest of the communities in mind? Living here sometimes for decades, committing to their chosen home.
Thankfully they can vote in local elections, and I don't think there's suggestion in the UK it's somewhow inappropriate, so why would someone from the outside had a say in what's right and what's wrong?