I think it is bullish for crypto, at least, it has made some buzz on various news platforms, social networks and others, creating more awareness and adoptions now and in near future.
Nevertheless, memes are actually part of the crypto economy but may lack sustainability on the long run. Meme coins are just fun tokens, though it has become an investments hubs this days, however, meme coins has a higher possibility to dump or crash if not manage properly by team.