You already know the correct answer. And they are mad at you because they know you did the right thing but broke ranks from the usual realtor deception and told the truth. There may just be hope for you yet. Congrats.
Tell them to look up the realtor code of ethics for your state and see what it says about telling the truth to your client.
Better yet print it out and wave it under their noses and watch them cringe.
In my state you cannot be a realtor and a home inspector as it is considered a conflict of interest.
The truth, what a concept!