right now the market is bearish so the value of tokens will drop and it will loss the interest of the gamblers to play since they are afraid that the value will continue to drop.
i love to play gambling in a bear market because i can buy a crypto at low cost and i can enjoy playing a gambling because the losses wont hurt that much . for sure other gamblers will do the same .
Majority of the gamblers are not traders, so they will prefer a coin that is more stable like BTC, and that's the reason why majority always have BTC as a means for gambling so gamblers can choose among the coins available.
trading and gambling are verry common due to their high risk . when you trade you are also gambling and when you gamble you are also trading ( vice versa ) . stable coin or not , it does not really matter because what matter the most is your bets .