Botanix "Spiderchain" shutting down with 1 month notice is a clear demonstration of why merge mined sidechains, especially with a BitVM bridge is the only long term bet that makes sense. There will always be Bitcoin miners, and mining sidechains is marginal cost for them, and a BitVM bridge may make the N in the 1-of-N multisig large enough that you don't have to worry that one company going out of business kills the entire chain

But even if the 2WP collapses, a merge mined sidechain will continue to have value just like shitcoins continue to have value, but the merge mining answer the question of block production in a sustainable long-term manner.