You can't ban anyone so please avoid talking about bans, since there isn't any consensus. You are just trying to impose your will regardless of the facts other people are providing to back their statements, without backing YOUR statements yourself. This map made by Renato Biasutti is more than enough. It clearly shows that, for instance, in Veneto % of blond people is from three to seven times higher than in Calabria, and in Tuscany is at least three times higher than in Sardinia. This is definitely relevant. Now of course you will say this map is:
1) old (but you won't provide a newer one)
2) not credible (but you won't provide a more credible map)
3) same difference as other countries (but you won't provide a single source proving that)
Etc. 
Try to stick at this map. What is wrong about it? As long as people won't provide sources to back their statements I will consistently restore any reference in the article. 89.97.35.70