A peaceful transition is not going to happen. Millions of conservatives would not accept the institution of green deal measures. They would revolt against them, along with the host of other predictable policies socialists would pursue, from gun control to increased taxation in every area of life. Domestic warfare would be inevitable. Perhaps even preferable. The problem is, would a conservative rebellion against green deal socialists be a grass roots affair, or would it be manipulated in a top-down farce?
The ultimate solution to the problem would be for conservatives to focus their efforts not on leftists, but on the globalists that are attempting to pull strings on both sides of the political divide. The globalists are the root of the cancer infecting our civilization, and they must be cut out.
If this is not done, then the only outcome I see in this situation would be mindless civil war. The globalists would work to control both sides through puppet leadership while we are hyperfocused only on the political left. Which means, they could control who wins, and who loses.