It is your 15 bucks and you can say you "fight" for bases or whatever, don't really care. I will tell you that with my own eyes, I have yet to see a base taken that their Assault was met with equal numbers.
This statement is entirely misleading and a thinly disguised strawman. You imply that it IS fair if the attackers and defenders have equal numbers which couldn't be further from the truth. In an equal numbered fight it would be near impossible to capture a base. 10 attackers vs 10 defenders, 10 defenders will always win. Why? Because when a defender kills an attacker the attacker must fly back to the base of interest which might take 8 or so minutes. In addition, the attackers must split their attention between killing the enemies as well as killing the towns and base objects. When an attacker kills a defender, the defender must simply take off again and get a little speed, this takes less than 2 minutes. So with this disparity of attrition, there is nothing fair about a 10v10 fight in regards to capturing a base.
So while your heart may bleed over the Devil's capturing bases and beating you up in this game, there is absolutely no basis for your argument, so you might want to go back to the drawing board and reevaluate things.