Your quilt is beautiful.
You know what I learned during the 70s? When someone is going off on you - the thing that will almost always stop them in their tracks is to smile and say "Thank you for your opinion". It's almost like a slap in the face with a wet squirrel tail.
And by the way - grumpy old people were grumpy young people who just had to be careful what they said B/C people won't take stuff off of young'uns like they do old people.
The thing is - I'm 75 and still have to be careful! Go figure.