Earlier quoted context omitted.
Xenophobia is defined (by one source) as "intense or irrational dislike or fear of people from other countries." Maybe comparing this commenter to "a lot of people who don't want brown people" is ham fisted and inaccurate. The commenter seems more interested in the culture, the freakiness or weirdness, of the people who come in, and not so much which country they came from. I do not see where the commenter mentioned…
It's a fine line.
Is it ever ok for a person to argue against policies that increase population in the city where they reside?
If so, what are some ethical reasons for resisting and/or advocating against population growth in a city?