MEV is already a fact. You cannot deny it, by naming it “centralized”. Ethereum and Bitcoin are also “centralized” by mining pools. In crypto, everything, allowing free market is good. MEV is not “bad”, you cannot dictate network how to order transactions and how to propagate them in p2p network. It’s allowed by protocol, and that’s enough to make it “legitimate” for traders - there is no need to do somethng with it with words, only with algorithms.
MEV, flashbots and other projects, moving in the same direction is only a develoment of “ordering market”, it’s normal. We need to build things like flashbots, better auctions, more concurrency on this market, it will stimulate new strategies of mitigating it. MEV make markets more effective, allowing almost instant reactions on asset prices changes - so, it’s not so bad for whole market, only for part of it. Also, there are strategies to attack MEV searchers, it’s also makes this topic not so simple as “MEV is bad”.
It’s a serious problem, but there are many ways to work with MEV, flashbots are not the only solution. DeFi protocols will mitigate MEV problem with offchain swaps, commit-reveal orderbooks, deterministic randomization of orders. These solutions, born in fight, will make crypto market stronger - so, it’s not so bad as you suggest, IMHO