The better response here is, a national leader is a lot more likely to be a political target that requires a security detail than some random Karen. This is another example of conservatives living in an alternate reality where they imagine they’re constant victims/targets. And inaugurations are public events where the security is there for both politicos and the general public in attendance.
Also, the exact same thing applied to Trump and they didn’t make any memes like this for his inauguration. This really doesn’t have anything to do with guns themselves.