you're talking about long term, but do you think core 30 may cause a short/mid term problem though? we have a precedent with what happened on bsv, when they raised op return to 100kb and i don't understand yet why this huge risk is being taken so lightly. "just don't update your node" won't be helpful, when other people do update and stuff ends up on a block
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I have this exact thought bouncing around in my brain, as such the just don't update line makes no sense to me. not to be a doomer but i don't see how this change doesn't destroy the p2p layer of bitcoin.