Those are the only ones mining real Bitcoin. Having more mine BTC or BCH is pointless as they are not actual Bitcoin and those miners mining BTC, BCH and other shitcoins are only doing so to milk the cow while it lasts... and it won't last forever. So whoever mines BTC, BCH etc, are just short term opportunists and they will all go away over time. Miners that are building for the future, mine BSV.