Earlier quoted context omitted.
Sure, but then you'd have to count the regular businesses that don't post heavy profits of which there are many. Also either it's 'market making' or 'trading' I think it should never be the same thing under one roof and that market making should have a fair bit of regulation and transparency.
Are you aware of market making actually means? Because your statement about "either it's 'market making' or 'trading' I think it should never be the same thing under one roof" is like saying "it either gotta be 'playing soccer' or 'kicking the ball', they should not be the same". Sure, "kicking the ball" is done by many different sports and in many different ways, but it is literally an integral part of playing socce…
Yes, of course, it was a poor choice of words on my part, of course market making implies 'trading', I meant to imply advising parties on both sides of a trade, or other forms of conflict of interest.