It is worrying you are more concerned about the reactions, perception wellbeing of your husband in this matter, than the impact of his behaviour on your child. It seems to stand out significantly here, although that wasn’t the intention of the first post, as the posts have developed you have become more and more defensive of him. I am not the only poster who has said that they think he is being irrational I am just one of the posters and I have hit a raw nerve somewhere - you know he is irrational, because you laugh at him. Thing is, it’s actually not funny.
This is a public forum and you asked for advice of strangers - it does not come with a caveat that they are only allowed to use the language you decide is acceptable. Ask your friends and family if you want a view that incorporates both of your personalities and experiences - none of which we have access to.
If you also choose to be of the mindset that you do not believe in anxiety or mental health disorders I do really hope that you broaden your view and educate yourself. As a parent it’s important to consider facts and evidence when forming an opinion about mental health. It is not ‘factual’ to make a statement like: I think there has been a huge overuse of psychiatry and 'mental health' diagnosis in recent years. If you look into psychiatry you will find if your honest that every single person including the psychiatrists have multiple disorders. in fact this is ignorant AND pretty offensive. There are traits in most people of different elements, but to dismiss anxiety as ‘something everyone has from time to time’ is a cretinous statement. And yes is offensive and narrow minded.
There is information on mental health from the DSM-5 which can give you an overview of the disorders you are so kindly dismissive of, despite other people sharing with you their experiences of anxiety and how much it can affect your life and that of a child.
It well known that parents who display anxiety to their children in the early years of development, can impact on the child learning anxiety - they are learning from their parents, so they will learn the anxiety or stress from you. It is your role as a parent to manage your own emotions and feelings so that they do not have a negative impact on your child. If you teach your child to stand on a rock in the garden and tell them ‘don’t’ over and over again for years of their life, you may end up with an anxious child.
You also are asking when the child becomes less weak and fragile, will your husband change/relax? He may find other things that cause anxiety and essentially, you will look at ways to train the child to comply that you want them to do, not what they actually want to do. Parenting is different of course - some parents want a more regimented child who is very well behaved and knows and follows all the ‘rules’ some believe in more freedom and exploration (like Montessori settings do). The issue can come when you have more than one child, it becomes far more difficult to supervise them as you then focus on the safety of the smaller child. If you want to raise your child in a strict household with the rules such as standing still on the rock and very carefully supervised ‘fun’ then that is both of your choices although this may be different when they start school or nursery where they have a routine but are not 1:1 supervised, have more free play and interaction with other children and tend to have more minor accidents. You hope that you have set them up successfully for going to school as it’s so different from home. Resilient children who have learnt from the falling over/making a lot of mess/having freedom tend to do better at school as they have the skill set already to make decisions on their own.
images.pearsonclinical.com/images/assets/basc-3/basc3resources/DSM5_DiagnosticCriteria_GeneralizedAnxietyDisorder.pdf
childmind.org/article/how-to-avoid-passing-anxiety-on-to-your-kids/