Sorry, no. There's many visa types into UK and employer can't verify the right to work at THE particular role based on passport alone. I happen to live in the UK and I happen to be an EU national, so this directly applies to me. I recommend you first find out what's the current situation before ranting about something you might know from the US, but it's a different country in spite of only one character difference
https://www.gov.uk/government/publications/right-to-work-checks-employers-guide