You say this as if it's some evil conspiracy
Even though I keep hearing about Citrea, it's difficult to get people to speak factually and with evidence. I've included a screenshot of what appears (after my limited research) to be the link between Citrea and OP_RETURN
We can't just magic away usages of Bitcoin that we don't like. From what I can see, Citrea will either use a large OP_RETURN, or a small OP_RETURN combined with two unspendable outputs. I don't think we can block them from both options; the most we can do is nudge them towards the one that we find less harmful
When relays are strict about filtering, then it means that Citrea will either use unspendable outputs (increasing the size of the UTXO sets) or will pay large miners out-of-band for large OP_RETURNs. Both of those are bad for miner centralization
Again, be practical, and share practical plans and alternatives, bearing in mind that some of us put miner decentralization very high on the list of priorities. Spreading paranoia about complex systems isn't helping anybody
https://blockspace.media/insight/everything-you-need-to-know-about-the-op_return-data-limit-debate/