It is not high capacity magazines that are the biggest affront to the sensibilities of anti-gun believers; it is guns in the possession of ordinary folk. They are not interested in giving anything to get our guns, they want them gone so their world can be a safer place. That is the doctrine of the true believers. Your game of hypothetical situations regarding our 2A rights with the objective of trading one right for another seeking win-win solutions seems to amuse you. Many of us find the game silly and offensive. You may have to find another group to play with.
"Any fool can criticize, condemn and complain and most fools do." Benjamin Franklin