Animation memes are technically memes because the real definition of "meme" is a trend that spreads from one person to another.
If you are convinced memes are only stupid pictures with text, you should probably learn the actual definition of "meme"...
| "MEME" DEFINITION
"an element of a culture or system of behavior that may be considered to be passed from one individual to another by non genetic means, especially imitation."
"an idea, behavior, style, or usage that spreads from person to person within a culture."