All meme coins are basically trash and it was originally created without real use case or utilities. But the difference is, Doge and Shiba was being hyped up by so many influencers in gaming and financial industry. So, they made a value because people are patronising it. Well, nothing's really wrong with that, not until people starts pulling out their assets and abandon this coin. Bitcoin is still the most safe currency to use and all other well established alts with real use case are safer than these meme coins.
Bitcoin is better, I use bitcoin on gambling site too, but I am not only using bitcoin, because of lower transaction fee (I used lower beccuaee bitcoin transaction fees that used recently are low too), I prefer litecoin which has been my favorite to bitcoin. I also like to gamble with stable coins, USDT on Tron network hs been my favorite, but the transaction fee is a bit higher. I do not regard any coin has memcoin while gambling, I have even never used doge nor shiba on a gambling site before.