I can only dream of getting rid of Segwit lol I know it’ll never happen tho…
Discussion
Why get rid of SegWit? It’s necessary for Lightning.
Lightning can still work with regular Bitcoin transactions.
But...
There would be transaction malleability where txid can be changed before confirming
The work around would be using only confirmed transactions.
It's hard to tell if there are other problems because we have to back up and think about how that would actually work in practice.