From what I’ve read, Chief Rabbi Jonathan Sacks ZT”L didn’t attend Limmud, which is a festival started in the UK but popular among typically non Orthodox Ashkenazi communities (generally, although not exclusively from the diaspora). However Chief Rabbi Mirvis did attend, unlike R Sacks who listened to Haredi opposition.
I was curious, is there an issue with Limmud on either a Halachic or Hashkafic level? Limmud is a secular festival, but even haredim don’t generally have an issue with secular gatherings so long as they’re modest.
My question is, what should the approach of Orthodox Jews be to something like Limmud, is it better to simply avoid the otherwise secular/Masorti community in terms of being part of a non religious Jewish community? Beyond Hashkafa, are there halachic issues of Marit Ayin or Lifnei Iver with associating with these people? And if not, then why is the London Beth Din so adamantly opposed to it?