many altcoins have the potential to increase in the future such as Ethereum. however there are some altcoins that have smart contracts that have better potential in my opinion are:
- Polygon
- Solona
- Stellar
- Bnb
- Tron
This is the list of the best altcoins in my opinion for now and I'm sure it will continue to improve in the future.
What you are saying is not wrong, but you should also know that they will not be able to overtake Ethereum because BNB and Polygon were basically built on Ethereum smart contracts in the past before they both had their own smart contracts as they are now.
But not forever they will not be able to overtake ethereum, even if there is a smart contract cooperation in the past between them, this will affect the level of use and advantage of one of them, if one can provide a different level of advantage, then it is possible that overtaking will be successfully done, provided that people can profit more from any development carried out by one of them.