And he shoudln't be arguing with you on a subject that
a. You have researched b. He has not
Lets use a driving analogy.
He has been driving for x years and has a perfectly clean record. You have been driving for just as long and have wrapped the household automobile around a tel pole not once but twice. This not only caused you and your H a great deal of financial hardship, but your H now questions your ability to operate the vehicle safely in the future.
HE takes the time to research driving manuals and other material to isolate what risks you took and why the automobile ended up ruined not once but twice.
You do nothing but complain that you are a good driver and know what you're doing.
He then begins quoting from the material to help you understand so that both of you do not have to experience this destructive hazzard a third time.
Now... In that scenario WHO has credibliity? The person with the CLEAN RECORD who DOES the follow up RESEARCH or the person who's done NO RESEARCH has TWO ACCIDENTS on their driving record who maintains to high heaven that they are a "safe" driver?
Do you see the problem there? Sorry, but this guy really needs to be put in his place or he's just manipulating you to the marriage's detriment and yours.