If there are to be actual tax placement on binance and any Nigeria Bitcoin platform definitely Bitcoin will no longer answer as a decentralized crypto cause now that the politics are in play definitely they are going to centralized it in order to monitors peoples worth.
Bitcoin will remain decentralized as long as you are using noncustodial wallet and decentralized means of exchange. But the exchanges and custodial wallets are using their customers activities on their platform to make money from their customers. Like those exchanges that Nigerians are using and the exchanges are not paying Nigeria government anything and the government are losing daily. Also peoplenusing the exchanges ought to be paying tax too.