It does not really mean anything other than there are many people that love to speculate on this market and they are using meme coins as the vehicle to do this, this does not mean that meme coins have become viable long term investments, because for what I can tell they are just as bad as they have always been and this will never change
Only meme coins, not the market, because market can include cryptos other than the meme coins. Also, it's not that they love to speculate because speculate can sound like a hobby only but they are after the easy and huge money that hides behind the meme coin. Yes, no one says that meme coins are a great asset to hold for the long term but everyone knows that they are only good for short-term use. They may be bad because of that fact, but pro and successful investors of them love them for providing them a profit that can't possibly be found else where.
however I expect for meme coins to get more active once the price of bitcoin goes up again
BTC can influence others and even not directly, it can still hype up the entire market, so yeah why not?