Memes are a new type of language, a development supported by technology that is in some ways comparable to the rise of remixing music.
I don't think they will be ridiculed to the same level as I hope our current social media behavior will be. They will more likely evolve to new levels, when the methods of remixing media expand and they become even easier to create.
I expect future generations may well say the same thing about memes. "People thought that was cool???"