Nope, there is no such decentralization... that is only twitter based brain wash args by core / Blockstream
Easy to say for you, but have never provided valid proof.
Just as there is no valid proof that increasing the block necessarily leads to centralization.

But we have excellent proff that the current block size leads to centralization for users.
Millions of new users can't use the blockchain because they simply don't fit in. And to use bitcoin, they must cooperate with custodial services. They have no other option. Coinbase, with 25 million users, demonstrates this perfectly. 25 million !!! This means that half, or even more than half of users, use bitcoin through a centralized service.
Bitcoin is turning into a network of "bitcoin banks", where users trust their funds to them, and the blockchain for transfers is mainly used by"banks".
... used by grey / dark big players
Right, and PayPal, Revolut, ... are the better, compliant side chains now - LN is non-compliant joke here. As is also Segwit (RBF, P2SH, taproot..., ) that forked good origina transparent ( and such compliant & legal) Bitcoin into sth different , darker thingy - now try to compete with Zcash, monero, DASH ...all the illegal crypto stuff.
'Nice' attack vector for reguators to tear down crypto - btc with them. Read US / UK FCA stuff here - EU / China all in the same boat imo.
There is ony on clean scaling option left - ready for all to use