Is this only a font problem? Many sites serve jQuery and other files from Googles CDN. Aren't these the same problem? Also there are other widely used CDNs that

Is this only a font problem? Many sites serve jQuery and other files from Googles CDN. Aren't these the same problem? Also there are other widely used CDNs that could affect your privacy .... will this not get very far, when you want to avoid any of these??