I have come to this late, but to me to put it back into context (a bit)....
I see being a fully paid up and proud YID as my identity badge today. I join in with the chants with pride and togetherness, whether at WHL (in-frequently), at the pub, or at home with the (Spurs supporting) kids. I'm not Jewish but have been around the culture and faith (or belief if I have the term wrong) from a very early age... (about 6 if I am honest when I met met Matthew, the Jewish lad next door who was a Leeds fan). Half my school were Jewish, and they were split almost down the middle between us and the Goons. But from the age of 11, I have always had an affinity and awareness of the term (because it can be plural and conceptual) or word, 'YID'.
To me, the word, and to an extent the concept is intrinsically bound up with supporting Spurs from circa 1978... Spurs could have been like Chelsea or West Ham, synonymous with prejudice and intolerance, tolerating their club's black players (like Canoville at Chelsea) but abusing the opposition 'non-Britons'. Spurs, on the other hand were (and I accept we are talking from a very low base here if we are talking about general racial/religious tolerance in the 70's in north London) a welcome, tolerant, appreciative crowd...
Garth Crooks was class as far we were concerned, colour was irrelevant. I remember circa 78/79, our Argentinian duo were regularly met with volleys of 'Wap', 'Dago', 'Spick' and 'Argie' but we loved 'em, (particularly Ossie), we embraced them, but in hindsight, they were the pioneers of today's footie mercenaries. With regards to Mr Crooks, I wish I had personally abused him more if I had had the foresight to appreciate how an intelligent, erudite young man, who had read the odd, obscure dingdongens' novel could metamorphose into the bore of today!
But to me, being nominally a C of E, being a YID is a proud badge. As a YID I am proud to support a multi-racial, ethnically diverse club. Age, gender, and religion are all accepted and absorbed amongst the fans and the club. Being a YID means that I am NOT a stereo-typical, narrow minded, neanderthal football fan.
That's what being a proud Yid means to me, an almost life long supporter.