lisa - I agree with you re increase in antisemitism. Anti-Americanism and Islamophobia are also on the rise. The world is getting increasingly polarized and it is a scary time to live in, especially when you are in a minority targeted with such aggression. My sympathies 
"In a time when as Jewish children in school we felt no prejudice... where we played out all hours with children of all nationalities happy and innocent together as kids . Most of my street's kids knew Jewish people enjoyed chicken soup for dinner as my mum would share it out liberally to my friends"
I went to school with a lot of Jewish girls, as lived in a place where Jews persecuted in Europe had fled to. As you say, we all played as kids, went to their homes and participated in their traditions etc. We are still close and get together regularly. Several of my parents' closest friends are Jewish couples who have lived near us since my childhood. Just wanted to reassure you that those days have not ended for everyone.
"Very recently a Jewish teacher in Marseille was attached with a meat cleaver"
I live in France and doubt if anyone here ignores these attacks that are very clearly antisemitic. When people asked for examples, I think they were asking for examples of casual antisemitism on MN.
When I went to the local synagogue twice to support friends who lost relatives, I was surprised to see the locked gates and armed men at the inner door, and that was about ten years ago. These days, it's not just Jewish gatherings/buildings - access was controlled at Xmas fairs in Nice and Monaco in December and armed police searched everyone's bags.