OKAY YOU ASKEDD FOR REASONS NOT TO..
gas fees are wayyyy more than the competition
and the competitirs have alkready and are creating bridges for
existing dapps etc to port over to a competitiors chain
algo for example launches that they call it state proofs , it rolls out n a few months
alot of people are trying to pouch there massive market share of users in defi and nfts
with lower gas fees and increased portability
this really hasnt kicked in yet
eth trying to solve the finality issue or whe=atever its called slipped my mind at the monent
to prevent a migration from ethereum
those are decent sized variables when you compare eth cost top the cost
of layer 1s desiging portability to strictly target eth gas fee pain of client base
theres a few more but thats the biggie i think