You most probably hold a British passport which is a very valuable document. Let me tell you as a holder of a not as valuable passport, who needed a visa to get anywhere, how I have seen the world.
I now live in the US. Before coming to US I visited many European countries. At the border of all those European countries I was treated as a criminal. I waited very long hours while people in front of me holding same kind of passports as me and then myself were interrogated like in a police interrogation. I missed connections because of those interrogations. In one case when I did make the connection, I heard the pilot of the plane speaking to passengers about how the delay was caused because of waiting for people of my nationality. Even people associated with people of my nationality were considered suspicious. A friend of mine was married to a Canadian man who had the same name as a famous American actor. When they tried to go together to one European country, that man was also interrogated for 2 hours by the border police because they thought his passport was fake. I was once traveling via train from European country A to European country B. I happened to be in a cabin with a man from country B. The border police of country B (this was before Schengen) took him outside the train and interrogated him for 30 minutes because they thought his passport was fake. He had a pocketful of documents, bank cards, credit cards, phone numbers of his family members etc. and the border police still were suspicious. I was so used to the long lines and humiliation that I thought they were normal for any border crossing.
Then I traveled to US. Imagine my surprise when I got off the plane, walked a long corridor, passed by a drug detection dog, got into a huge room with many passport control booths, in 5 minutes found myself in one of them, the immigration officer asked me where I was going and what was the goal of my trip then stamped my passport and I-94 and I was done. Even if I didn't go anywhere from there, the trip was already a success. It made me feel like a human. In the time since then I have seen the checks in many European countries improve and in the meantime US has added the annoying process of fingerprinting, but in my view US border control still offers better human experience compared to European countries. I was once crossing the border from Canada to US and there was this old woman trying to get into US with an expired (like 30 years old) British passport. The border agents still found a way to let her in. Since Schengen she probably would be let into other European countries but I am sure before Schengen she wouldn't be able to go anywhere.
I know that there are people who have negative experiences while trying to get into US as there are negative experiences for people trying to go anywhere, but I think most of the noise associated with them is unjustified and if US border control need improvements other countries need them even more.