"That's not nationalism."
No, what follows is your definition of nationalism. From the Oxford dictionary:
Nationalism:
the desire by a group of people who share the same race, culture, language, etc. to form an independent country Scottish nationalism
(sometimes disapproving) a feeling of love for and pride in your country; a feeling that your country is better than any other.
"Nationalism is the belief that the group you're part of (usually tied to some national identity myth) is superior to others, and usually goes hand-in-hand with xenophobia, racism, bigotry, and fascism."
The rest of your argument is a straw man. Obviously anyone would denounce xenophobia, racism, bigotry, and fascism and all the other vile actions you mention.
And please don't edit your original comment to change the context, continue the conversation down stream in the comments section.