I would support you if the blues/pinks/whatever collectively added up, but I don't think they don't. IE, if yellow has 1001 votes, and true greens, olive greens, and teal greens all have 1000 each, yellow would still win despite the overwhelming majority green.
That is assuming that there are non-repeating votes among the greens. Though in your example, absolutely everyone would have to have voted for all three greens for yellow to have a higher gross population, in reality the totals are not so close.
At the moment, there are three individuals who have voted for all three greens, and many who have voted for two. I have gone through the trouble of counting, and there are currently 49 unique green votes—though it would seem at a glance that there should be 58. Therefore, yellow's 56 is still ahead of green.
(It is possible that blue or pink is leading, but I do not wish to count all three.)
It is true that this poll layout can split votes, but only for those who do not understand the system. As it is, some who voted for one green but not the others have also voted for yellow—to assume that they prefer
any green over yellow is to impede their liberty of choice. Ultimately, if someone preferred all greens over yellow and wished to vote for them all, they
can. If, however, someone wished only to vote for certain yellows, they cannot, and it is there that the inequality lies. Whether this restriction of choice benefits or hinders the yellow vote is hard to say without asking each of the individual voters.