Memes will always be in the red because that's just how they work. Memecoins entire business model us to go up in the green for a short time, but really big, and then be in red for the rest of the time.
Now as for the rest of the crypto market, I have no idea why they are down all of a sudden, but it appears to be a pretty big deal because everyone is basically speculating on the reason and nobody really knows why.