Miners provide security for L1 and that's important. It's important the security budget stays high enough to incentivize them.
Miners deciding on a fork is an OR choice, made on behalf of the users....
@21_21_21 that AND choice covers your coins. the miners validating the peg are the same ones securing the chain you never left, so a peg failure at size lands on everyone's security budget whether they opted in or not.