USDT is much more actively used on Tron than Ethereum, so this is
probably not true. There are too many scams and risks on Ethereum that many people prefer using Tron, besides it is faster and cheaper.
I wonder if there is somewhere good data that compares usage not just issuance. Does anyone know a source?
Honestly I believe if it wasn't for stable coins Eth would be useless by now worth $0. Otherwise what people will use Ethereum for, just NFTs and selling NFTs for bitcoin not for stable coin payments? Smart contracts with what if there are no stable coins at the other end of the contract?
ETH has no advantage over the new generation of coins. It is only there because of age and being the first for these kind of features. Old interests are keeping the price high.
Otherwise when will bitcoin gets its own stable coin on its own layer 2 to compete with ethereum? Layer 2's none of that sidechains nonsense that leverage no security from layer 1's.
I think I've read somewhere that someone is trying to deploy a stablecoin on Bitcoin, but I am not sure.