It's simple tit for tat. JD Vance was the one on the campaign trail talking about eggs while MAGA was freaking out online. Once trump went into office every MAGA became an expert on Bird Flu and the supply chain.
But tit for tat isn’t working. One thing Dems need to realize quickly is if you just alienate Trump’s base with the same obvious bull**** that JD Vance did, you’re not offering a different path. In terms of the economy as a whole, eggs are an outlier that are not making a difference on any American who isn’t dependent upon eggs for their livelihoods. There are not enough Dems that seem to understand this yet and it’s been months since the election should have woken them up. I’m keeping my eye on Jake Auchincloss who seems to at least understand that we need to win elections by having an actual message to voters beyond “haha, you Trump-voting ****er.”