Yes, Christian Nationalism IS Christian
There's a problem we need to confront: Progressive Christians want to confront Christian Nationalism while at the same time insisting that Christian Nationalists are not actually Christians.
They're doing this in order to avoid dealing with the many consistent sources of bigotry, violence, and other forms of domination within Christianity.
Whenever a Christian does something offensive, they're labeled a "fake Christian", and therefore, there is never anything wrong with Christianity.
We need to call out this dishonest tactic, because it ends up actually providing more cover for the problems within Christianity that fuel Christian Nationalism.