Maybe they should focus on actually being his parents then instead of undermining him constantly and adding to his stress, as they are a massive contributor to his anxiety levels. In fact, they constantly make him feel like the children are far more important to them then he is as he gets very little support from them, no matter how much he tells them he is struggling. Don't get me wrong, I get on well with them, but sometimes they make our lives far harder than it needs to be