SwiftUI factory method issue in subclasses - swift

Question

I develop a SwiftUI app in which I created a model entities inheritance hierarchy. The entities have a view property that returns a View instance. The intention is to build a List from an array of entities.
The model code:
protocol EntityProtocol: Identifiable {
associatedtype Content: View
#ViewBuilder var view: Content { get }
}
extension EntityProtocol {
#ViewBuilder var view: some View {
EmptyView()
}
}
class RootEntity: EntityProtocol {
let id = UUID()
}
class EntityA: RootEntity {
}
extension EntityA {
#ViewBuilder var view: some View {
Text("This is from EntityA")
}
}
The intention is when I have multiple subclasses of RootEntity each of the subclasses will return its own view.
Then I have my ContentView:
struct ContentView: View {
var entities: [RootEntity] = [EntityA()]
var body: some View {
List {
ForEach(entities) { entity in
entity.view
}
}
}
}
I have one item in the entities array but I get an empty view as a result, the view property is not called inside ForEach.
However, when I type cast to EntityAn inside ForEach it works as expected and shows "This is from EntityA" label:
struct ContentView: View {
var entities: [RootEntity] = [EntityA()]
var body: some View {
List {
ForEach(entities) { entity in
if let entityA = entity as? EntityA {
entityA.view
}
}
}
}
}
I'm using Xcode 14.2
Your suggestions on what's going on are welcome. And please tell me if I'm doing something your not supposed to be doing with SwiftUI.
Thanks!