You will tell me but with a downvote you can make them down even more, true but then it would be like a double malus for the downvoted proposal, not very balanced...
Hmmm... If there will be a downvote, we shouldn't have a Return Proposal, but another measure for the "majority votes"... I am not sure if I understood your observation well...
I agree about the proxy vote. That is what you said.