I'm not. Toyota is the only one I can think of that makes a large IC engine sedan so it's the only place for the customer to go.
The sedan buyers that Ford, GM, and others abandoned had to go somewhere. It's like minivans. If everyone made them, then they would be spread thin, but the 4 brands that still make minivans do decently with them. Sedans are kind of the same. There is demand, but not enough for everyone, but when the herd is culled a bit, the ones left over do well.