Globalism has also improved many peoples lives as well. Indonesia, India, China, Thailand are all unrecognisable from 30-40 years ago.
What to do? Eh - get out there and try and make a difference rather than wring your hands that 'some one else ought to do something' It is called having a civic sense of duty. Pick up litter, volunteer at an old peoples' home, teach refugees English, volunteer at the CAB, campaign for a cause you believe in, join a club and help organise meet ups. Whatever, but if you don't like the state the country is in, try and make it better in small ways, as they will add up.
Plus, from experience when you do this, you end up meeting other positive, helpful people that makes you feel better about the world.
My sister is one of the happiest people I know. Part of that, is aged 60, she still volunteers to teach/ assist severely handicapped people swim. They love it, she loves it. Everyone wins.
Or vote Reform I guess.