to be taken in context with the previous discussion, if the altcoin is more valuable it is a reason not to transfer back.
FTFYCan you see how no matter what direction you go your logic fails you?
OK you have to go around the sun a fiew more times,
Altcoins don't lock in Bitcoin - someone gets to spend them, if one fulfills a function like fast transaction speed and is adopted it's because of market forces. Actual value as at risk.