I think I agree with your every point. I'm not so keen on a defensive 3 with wing-backs. It forces good players like Walker to have to play a more central role when they are so used to and successful as full backs.
I also agree that England lack creative midfielders of the likes of Modric, or even of players of the past like Scholes. I've never been a Henderson fan; he blows hot and cold, some days great others sloppy, like yesterday. I think the same of Kane tbh. He was great for the first two games and then became anonymous, isolated and ineffectual. That's not all his fault, but it is something Southgate has to address. As I think Dion Dublin was saying on the radio this morning, Rahim Sterling has been the player that most defences fear and the most influential player for dictating the course of the game for England. We saw that Rashford, when he replaced Sterling, couldn't offer anything in temrs of linking the strikers to midfield.
I agree with you about the hotheads too. For some reason Dele Alli gets away with murder and Lingard just has a short fuse. If they don't start to get the disclipline they need Southgate should start looking elsewhere. Both of them had just one good game at this WC.
I feel sad but optimistic after last night. I predicted they'd make it to the quarters, somewhere back in this thread, and they made it one step further, so I ought to be satisfied, but I'm not really.