You are right but the point is that Monero bros seem to refute the fact that it can't scale either on-chain, and it will have to adopt L2s too with the same problems encountered on Bitcoin.
So eventually it's a battle of L2s with maybe here again an advantage for Monero in term of privacy but much smaller, and when come potential L3s it will be the same.
The inevitable scaling in layer for blockchain based currency make the advantage of on-chain privacy smaller and smaller as you go up the layers.
So in that context I can't see how Monero could be more than a Bitcoin side chain for spending.
