In this time, those people can be considered as a rich who are transferring their funds through using Ethereum network. By the way, it doesn't matter how much the fee is for big gamblers. But it matters for small gamblers who don't have huge budget. Besides, Btc or Eth, we have seen some Cryptos already supported in many gambling sites. From those sites, TRX, USDT is the most usable cryptos. This time, I also choose other altcoins like Trx, Doge.
The low price altcoin will be the choice for the small gamblers as they do not want to pay the high fee.
Once I discuss the bitcoin and ethereum transaction fees with my friends, they tell me that they do not want to pay the high fee from ethereum or bitcoin. So they convert their bitcoin into altcoins such as TRX, Doge or the other low coin price to reduce the fees.
So the altcoin will be preferred than to use bitcoin or ethereum to withdraw today.