How do I bathroom / kitchen / extension? etc.

Ugh... It has been pointed out that if we knock through part of our wall between the kitchen and dining room then...

1. Can't close the door when I'm on calls (98% of my day)
   
2. Can't block out smells
   
3. Noise travels through to upstairs and impact entertaining (lol a proper edge case)
   
4. Noise travels into the room
   
5. Permanent view of the kitchen for the people sitting opposite
   
6. View to a upvc kitchen door which gives you a view to our untidy alley way which gives our neighbours a view back all the way into our dinning room.
   
7. Some sort of funky sliding door would have to be a double slider totalling 13cm from the wall.
   
   

Kinda all goes back to why in the UK my default position is that open plan is shit. Fucking grumpy now.