That is not at all what I said. They could provide lobbies for modded only clients, and those with no mods. Boom, both parties happy. Modders can continue to have such QoL stuff, cosmetics, and what ever else they may like. No bother to you at all.
That's also only one solution that doesn't resort to needing to ban them and use an entirely different anti cheat client.
Ban the cheaters getting SC easily, or ruining other players game. I just highly doubt that's a high % of the moding community.