Sure they can, I think rescheduling a season is complex and comes with it's own unique set of consequences, largely related to scheduling. I acknowledge those consequences and I'm not for one second saying that it's going to be easy, but it can be done (in my opinion). Moving things around to accommodate everything into a new calendar that isn't August - May absolutely can be done, we still have the same time period to fit it all in, but it's going to have to run across different months. Saying certain things 'can't' be moved is short-sighted and stubborn when a load of things have already been moved.
Again, you say that your argument is realistic and mine isn't so we can go round in circles all day.
Nobody has proposed a 47 league game season. You're fighting windmills here, I haven't suggested that.
Finish the current league season. Appropriate break in between, as you would normally. Start next league season. All when it's safe to do so. Fit the international competitions around that.
Not straight forward, but not an insurmountable task by any means. That's what i've said repeatedly.