Nico - Nice post and appreciate the positives for your Mum since many of us have beloved family in. If they'd protect the children, stop the shunning/blood issues it would be great/not happenin'! I don't care about their view on holidays -- so many secular folk can't stand them.
I have Morman friends who love their religion and have been in forever -- good people but the 2 JW friends I had (for short duration) are irreplaceable. I'm friends w/daughter of one and she couldn't run away fast enough from religion -- her Mom is aged now and shunned the oldest but not strong enough health wise to shun the youngest. I know Jewish couple who shun their son who married a non-jewish girl -- they've never met their beautiful grandies (grandchildren) -- just pathetic.