I expect, at this point, we will just agree to disagree and there's no way we'll see eye to eye but no: it's very much not. Race is an ill-defined social construct whereas xenophobia is based on prejudice against cultural and national lines and, while those are also socially constructed, they are more concrete than the boundaries of "race".

As such, racism seeks to (and is more defined by its attempt to) construct a sense of identity against something to maintain a status quo (hence why the definition of "white" has been able to expand to include ethnicity such as the Irish) to better position itself against others.

While cultures and ethnicities can certainly change over time, they're not remotely as nebulous (and made up) as race is and, thus, don't operate in that same way; people are also much more invested in cultures and ethnicities beyond reasons of maintaining hegemonic status quo so that impacts things, as well.