City university - economics bsc - why are the stats low?

Is city UoL good for economics? I’ve seen some stats and seen that they’re quite low especially in comparison to royal Holloway. Also, their business school is well known and popular but econ doesn’t fall under here…and is instead part of the global affairs school.

Is the social life good at city? And are friend groups diverse? I heard now people usually stay in their own ethnic groups.

I don't think it's a top tier economics department in London, but a decent one nonetheless. If you do well here, you should be able to pursue postgraduate studies at any top uni. For job opportunities - make sure you top up your CV with good work experiences to maximise your chances of landing a good paying job.
Problem is - normally at lesser known or non-targeted Universities - students expectations are too high based purely on the course - there are other factors that come into play.
Uni is just the start.