Well to be fair, since the BREXIT the entire world wants to be the UK's friend again. I'm talking in the economic sense now, so I do believe your country will improve economywise. As for uniting the people, that will be more difficult. Their are 2 problems imo (and this is not just in the UK but everywhere).

1. People have become vastly more selfish these past decades, everybody likes to live in their little bubble and most people don't give a **** about other people. It's really sad when you think about it.

2. Gouvernments and big banks around the world are reinforcing the point I made above and are doing their best to keep us seperated.

The important thing is to stay positive. I believe people are starting to wake up (albeit slowly) to the stuff you have pointed out. A lot of us are starting to question the system. I shudder when I see what the politicians have done to my capital (Brussels), in Antwerp the situation is even worse (you can get fined 65 euros for eating a sandwich on the steps of a gouvernment building). The internet has been a great help uniting us, eventually people will stand up (remember what happened in Egypt with Mubarak). The American elections are helping too when you think of it. A lot of people are starting to look through the façade and are asking: "Really? Out of 320 million people these are the 2 options?"
The system will change eventually, if it will happen in my lifetime is another question.