"When the most 'generous' one can be on the grievience addressing within a minority community curve is concerned, is apathetic, Dave, you are starting a bit further up the downright biased end of that scale to find where our happy medium lies..."

=

"... if the best the average Brit can be is apathetic,..." (... about addressing the grieviences of the minority community "... and the worst is downright hostile, wherein lies the average, Dave?"

But are people going to admit that they are anti-Irish...?
Is that the kind of thing one will say of themselves.

If it's like the North, it'll manifest itself in the psyche first.
That's where the most damage is done...

T'will be an interesting thread you've created next-door, methinks ....

;-)