God bless,
In your other thread you also mentioned that your children have pestered their family members A LOT because they don’t go to Mass and were bugging them about going to confession and mortal sin… This is where I see the danger more than the impact of your family if your don’t change your approach.
Simply tell your children it is bad manners to correct an adult about any behavior. For example, if they see an overweight relative reaching for a second helping of dessert, it is not their place to correct them! I worry that because this is involves your children’s faith life that you have let this continue, thinking it was okay or good for your children to evangelize?
The danger here (as I see it) is not so much your relatives (because they are not your direct responsibility) but that your children may be feeling a sense of spiritual superiority or pride which is not a good thing. You need to face this head on and not waffle or let this slide any longer. It seems since you didn’t know what to say, that things just happened.
I have been in your shoes it is very hard. I have seen my own children worry about their relatives and we have had MANY talks about the subject. It was a great teaching moment to encourage them that they have received the GIFT of faith from God! I had to do this a lot as I could see pride sneaking in. Based on what you wrote in the other thread, your children seem close to thinking they are better than their aunt and that is not healthy. Do what you can to take your children’s irritation and upset with your family, and turn it into compassion instead! Having faith and going to Mass on Sunday is not something we are proud of, it is a beautiful gift we have received! We need to pray that others are open to the gift as well.