Sounds like you need to write a different extension method that edits the content of theirs.
One angle you could pursue would be taking advantage of how the ASP.NET MVC unobtrusive validation script searches for all elements within the form with a data-valmsg-for="inputName" attribute and it tags them with the field-validation-error class. So, you can work with the existing functionality by adding that attribute to your container.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.