If you catch them right after launch, I'd say yes, "meme" coins are profitable. But I'd say this is more about pure chance/luck than anything else. Because "meme" coins usually go down after a brief period of hype.
The new Robinhood chain will probably end up like similar projects. Abandoned by the "meme" community, as devs and investors move on to the next big thing. We'll have to see if this will take away a significant portion of Solana's market share. After all, Solana's been the #1 "memes" platform for quite some time. History will repeat itself. Just you wait and see.
Catching a successful meme right after its launch is like winning the lottery. In other words, the chance that you’ll be able to buy a successful meme right after its launch and then make a profit is significantly lower than the chance of running into yet another rug pull token.
As for Solana, yes, most of the activity on this network revolves around memes, particularly on platforms like Pump Fun. But it’s worth noting that, from time to time, BSC sometimes outpaces Solana in this regard.