Associate a data object to Monobehaviours with generic

Hi,

I can't figure out my problem.

I would like to add a Data object in some of my MonoBehaviours.

So, i have created an abstract class like this

 public abstract class DataMonoBehaviour<T> : MonoBehaviour 
     where T : BaseData, new()
 {
     protected T Data;
         
     protected DataMonoBehaviour() 
     {
         Data = new T();
     }
         
     protected virtual T GetData()
     {
         if (Data == null)
             return default(T);
             
         return Data;
     }
 }

I have also a class for my Data objects :

 public class BaseData { }

And some derived Data classes with properties on it :

 public class DataA : BaseData { }
 public class DataB : BaseData { }

So now i can create Monobehaviours associated with a Data object :

 public class MonobehaviourA : DataMonoBehaviour<DataA> { }
 public class MonobehaviourB : DataMonoBehaviour<DataB> { }

What i want to achieve is get all components of a GameObject that inherites from DataMonoBehaviour (no matter the type of T).

 foreach (var component in gameObj.GetComponents(typeof(DataMonoBehaviour<BaseData>)))
 { 
    
 } 

But this doesn't work..

Then i want to convert this component back to DataMonoBehaviour so i can do this :

 ((Convert back to DataMonoBehaviour<BaseData>)component).GetData();

to return my Data object associated with the DataMonoBehaviour

I don't know if it is possible to do so. If not, which are the possible solutions ???

Thanks you!

K