"Since the early 1990s, many curves of the stadium have been occupied by neo-Nazi and neo-Fascist groups, but this problem has been addressed only as a problem of public order."
That is a view that is supported by Italian football writer Charles Ducksbury, a fan of Verona, who added: "The ultra still, and always will hold all the power at clubs. They choose what is sung, what everyone does and how they do it.
"Stewards and police hardly ever enter the curve as they would most likely get beaten up. Ultras say if the authorities stay out the curve, there won't be any problems. Almost all trouble happens outside the ground anyway, so that's where police tend to hang around."
While Boateng walked off, former Netherlands international Edgar Davids, who played for both AC Milan and Inter Milan as well as Juventus, said he felt it was important to show that racist abuse did not affect him as a player during the many years of his career he spent in Italy.
"You would have a problem in certain areas," Davids told CNN. "But you are a professional, you have an obligation to your team. My opinion was I'm a professional and the smartest way is to play so good that you make them even angrier.
"It is also about ignorance, a fear of the unknown. If you are interested in different cultures, it's normal.
"If you're not, you don't understand that concept. It is not only in Italy and it is not the whole of Italy. It was only certain teams you played, but 80-90% I didn't have a problem in Italy," added Davids, though Valeri's analysis suggests the problem is much more widespread.
If football, race and politics make for a combustible mix in Italy, it is also arguable that the standard of the country's stadia is not helping.
While English football was forced to grapple with extensive stadium renovation to improve facilities for fans due to recommendations made by Lord Justice Taylor after the deadly crowd disasters at Hillsborough and Heysel in the 1980s, Italian football was left in a time warp.
"I really don't believe that Italian football has learned the lessons of Heysel and Hillsborough, or at least hasn't implemented any tangible changes at anything like the pace required," said another Italian football writer Adam Digby.
"While the Taylor report and formation of the Premier League put English football at the forefront of fan safety and gave it ultra-modern stadia almost throughout the league, Serie A still plays host to a number of ancient, decrepit grounds.
"Many are still those built for Italia '90 with places such as Verona's Bentegodi and the San Paolo in Naples particularly poor on both counts.
"The problems extend to a lack of quality stewarding and lax ticket security while the ultras bring even greater problems to the situation."
Owen Neilson, who is writing a book about Italian football stadia -- "Stadio: The Life and Death of Italian Football" -- concurs that the lack of stadium redevelopment has held back Italian football. Of Serie A's big clubs, only Juventus has built a new stadium, he notes.
"The modernity of the stadia is the central issue to declining attendances -- families do not want to sit in the cold, unfriendly surroundings," said Neilson.
"In my opinion the league needs to harness to new stadiums to help maximize Serie A's re-emergence."
So what's the solution?
"The FIGC makes a relevant anti-racism activity both in the national and international domain according to the UEFA policy and guidelines, and is member of anti-discrimination organization Football against Racism in Europe," said the Italian Football Federation in its statement to CNN.
"Specific guidelines are part of National License Club System's requirements, as are the anti-racism initiatives that are made through FIGC Youth & School Department to involve 860,000 young footballers."
But as Italian historian John Foot, author of the authoritative book on Italian football "Calcio" points out: "The Italian authorities have been all over the place on racism for a long time."
Valeri, meanwhile, urged the FIGC to donate the racism fines it recoups from the clubs for initiatives against racism, as does UEFA in its work with FARE.
"Any solution has to revolve around the football authorities," added Professor Clifford Stott, who has advised governments and police forces internationally on crowd management policy and practice.
Stott calls on FIFA and UEFA to do more.