USDT, USDC or other stable coins are still part of cryptocurrencies. They are pegged to fiat prices but people still see them as cryptocurrencies.
So that’s my question, are they killing the crypto edge we enjoyed before?
Did you mean hedge against inflation or what edge did you mean?
You can still gamble with bitcoin and other altcoins. I will not be surprised if bitcoin is still massively used by gamblers today. But if there is something you enjoy about unstable coins in gambling, you can still use them.