What nonsense! So all businesses that "toffs" patronize (I had to look that one up) should be located only in the area where the wealthy live, lest those less fortunate be offended at the site of people of means in their neighbourhoods. By extension, the only businesses that should operate in lower income neighbourhoods should be second hand stores, greasy spoon restaurants, sleazy liquor stores, used car dealers, strip clubs, etc.   
 
I'm surprised Ambrose - for a died in the wool progressive who agrees with anything as long as it gels with the progressive agenda, that sure is an exclusionist, racist comment! 

Oh yeah, I forgot, the social engineering endemic in progressive ideology is arguably (barely) the most racist behaviour exhibited by the "enlightened".