I’d rather France than Spain should we get to the final, tbh. France’s shithouse football is our wheelhouse, whilst that technical, fast paced possession football is befuddling to Southgate and English sides in general - I can see England being a lot more comfortable and familiar vs this France than this Spain, personally.
Having said that, Walker and Shaw are very good bets vs wingers, and at least Spain would have to be more centralised, going through the middle of the pitch. They may well be able to work the ball towards goal through the heart of the pitch, but their potency once there is dulled via their striking options, so… and their defence really isn’t all that, so who knows? But instinctively, I think France, for all their athleticism, have very little creativity or incisiveness, which is the better fit for England. England are also by far the better matchup to France in terms of athletic prowess, so I don’t think they can win through via that avenue alone vs England as opposed to Spain.
Oh, and the Rodri X-factor is to be avoided at all costs, as he can turn the game through the heart of midfield by himself.
Regarding sitting. You can easily envisage Southgate playing to nick both games or play for penalties. If the opposition sit, so too will England. Gladly.