The phrase "more dove" can have a few meanings depending on the context. One possible synonym for "more dove" is "increased peace." This would be appropriate if the original statement was about a peaceful situation and someone wanted the peace to be amplified. Another synonym might be "further reconciliation." This would apply if there was a situation where two parties were attempting to make amends and someone wanted to take that process to the next level. A final synonym could be "greater harmony." This would fit in a situation where multiple individuals or groups were working together and someone wanted to enhance the level of cooperation.