The Steven Universe-Uncle Grandpa crossover should be cancelled. Trying to do a cross-over might seem like it would benefit both shows through a mutualistic relationship, but actually due to it interfering with the underlying plot of Steven Universe by adding Uncle Grandpa, they'd be sprinkling Steven Universe with hints of completely unrelated animations and a less serious undertone than that of Steven Universe.

The synopsis of the crossover is this: "A long-lost relative of Steven's comes to town to aid him in unlocking the power of his mother's gem!" The obvious conclusion is that Uncle Grandpa is the long-lost relative. However, such an important part of the series should not have its plot integrity soiled with a show that has the lack there-of (Uncle Grandpa).

And while I do not expect all supporters of the campaign to stop watching Steven Universe, if this is aired, it's likely I'll no longer be watching. However, I'd like to think a certain subgroup of supporters will do the same.‏