dave; like you I'm a mongrel, and proud to be so, though strangely others sometimes take offence at my definition of myself!
It seems to be OK to identify yourself as Scottish or Welsh but somehow xenophobic (sp. Dave) to use the term English; the whole issue is a very contentious one.
If the 'origins of mankind' theories are true then surely the only indigenous people were those in the place mankind moved out from: Africa?