"Economically inactive" is not the same as unemployed.
Unemployed is not the same as on benefits either.
An awful lot of economically inactive people (so people who do not have a job) are either early retired, long term ill (covid or post covid or on nhs waiting lists), or stay at home parents.
You might have noticed there is a lot of private healthcare ads about now that run along the lines of "by going private I was able to get back to work quicker".
Most economically inactive people do not want a job and are not looking for one.
Economic inactivity rate is 21.9%.
Unemployed is different, here the person does not have a job but wants one. There are technical differences in measurement depending on how you try to work out how many people are unemployed.
Current unemployment rate is 3.8%
Big difference.
Don't get me wrong, 3.8% is still high, but it's not 21%!