#walkaway is just a conservative attempt to make abandoning the Democratic party a popular thing. They're trying to create a meme. And the #walkaway hashtag is trending out of Russian bot farms, whose purpose is amplifying a message to promote ideas and damage opponents of conservative politicians. A kleptocracy is firmly on the side of conservative politicians around the world. Republicans used to run on fear of Russia, and now they are firmly in bed with Russia.
Yes, some people will, for whatever reason, change party allegiances. Right now, the flow is mostly going the other way. #walkaway is an attempt to stem that by thinking that people will leave the Democrats if they can make that move seem popular.