This shouldn't be such a brain teaser. The forfeit is on whomever abandons or is unable to play the match/scrim. The basic fact is that you made a decision for Cade that he is unable to even attempt finishing the match, despite his wiliness to do so. Thats just not your choice to make regardless of how justified you feel by knowing he general skill level.
Hopefully you're not so enthralled with your own playing that you couldn't imagine a situation where a solo player, either through luck or raw skill, could beat your partner and you (or any two players for sake of argument). What you did was to make some fairly large assumptions about Cade's skill, and even worse all the possible ways of the match unfolding, and decided their is no chance of him winning. I would say its plain prejudice and even discrimination.
A few other simplistic points;
1.) You agreed to play a match/scrim, and you probably assumed you'd spend a certain amount of time playing it. You're
not "wasting time" by continuing to play for what would most likely be a shorter match. If its easier then it would probably take less time than originally planned for and you would "gain time".
1.) There are many situations in sports where a team can be down a significant portion of their team and still carry on the game. As long as the remaining team members can still fulfill the postions or basic gameplay then it should be seen as nothing but a strong disadvantage. Since DP doesn't have positions, and more important has a very loose, flowing gameplay, its impossible to say that any player couldn't perform the duties of the game. A few "nob skills" alone like camping, hiding, and flag lining would allow for a pretty close game.
Although it seems like most people would simply forfeit in a situation like this, he didn't, and there is no substantial reason to make him quit besides your own perception of how he plays and how the match will progress. Bottom line, if you can picture just one incredible player being able to take you and your teammate on in a 2v1, than you have to allow Cade the same unbiased chance. The choice just isn't yours to make for him.
mewa.rules