Well sadly my brief stint recommending you is over already :(
The main problem with publicly hoping people die is that although it doesn’t formally count as incitement, functionally it’s much closer to it than you seem to understand. With a large audience that you don’t know, some fraction of it’s members are guaranteed to conclude from this sort of piece that we’d be better off if McCain fell to an assassin’s bullet. Although you say you don’t wish him a violent death, you don’t explicitly spell out that the descent into a culture of violence that such assassinations entail would not be worthwhile. In politics, this DOES NOT go without saying, ever. Particularly not now.
How would you feel if CNN aired a piece explaining to their tens of millions of viewers, some fraction of whom are guaranteed to be violently unstable, how much better and safer the world would be if you died? If you consider this question honestly, you may be able to see why it’s advisable to steer far clear of this sort of discourse.
The other much smaller consideration is that this article seems to reveal you as being mainly concerned with self-promotion, rather than the big-tent coalition ideas you claim to care about. It has very little content, and the content is less prominent than your feelings. Your feeling in this case seem highly unlikely to result in an expanded coalition.