would you consider "foreigner" an offensive term?

[questionzzz]

I gave a presentation to a university class yesterday, using the term foreigner,eg "foreigners and healthcare" (it wasn't about healthcare). For context, I am visible ethnic minority, grew up in the UK, moved to Canada in my early thirties. I explained in my presentation that I deliberately avoid using the term immigrant, because my presentation did not focus just on immigrants, but also talked about refugees, international students, their spouses, temporary foreign workers and so on. In short, foreigners. At the end of the presentation, one of the students (also visible ethnic minority) said she found the term foreigner offensive because it contributes to "othering" immigrants. I agree- I see the point- but the fact is, immigrants- and foreigners, are "othered", I said my lived reality is that I'm a foreigner- and foreigner is a non-academic,commonly-used phrase which everybody immediately understands. She said what about slogans saying "foreigner go home" on walls. Also many recent immigrants see themselves as "Canadian" and would resent being called foreign. Again, I agree! But should these racist slogans prevent us from using a pretty accurate term? Also, no matter how "canadian" recent immigrants feel, the fact is (as my presentation showed), they are not treated in the same ways and have different outcomes. Others said maybe I should consider using the term "foreign-born". I said in my home country, the administrative term is "alien". Maybe I should use "wanderer? or "stranger"?" Anyway, the discussion was good, and ended on bit of laugh, but it did get me thinking.
AIBU not to find "foreigner" offensive?

@AnnaMagnani she was an immigrant then, not migrant.
That's the problem with terms. If OP said 'migrants and refugees' it would exclude immigrants and others.

I have lived in both countries and where I am now I consider myself a 'foreigner' - I have every right to be here, residence and even citizenship but my foreignness is unmistakable. It's a fact.

I prefer direct language, especially when asking your audience to confront and unpick complex social issues - mealy mouthing ("newcomer") does little to mask the othering I experience on a daily basis.

I'm also disabled ... it's a right joy to be asked the intricacies of my life and medical history each time I get my crippled foreigner self into a taxi with my accent and my crutch.

My grandmother lived in Canada from 1960 until her recent death. If someone told her she was a 'newcomer' wtf?? She was as much a foreigner as she was Canadian- her roots and culture were as important to her as her chosen country, and she was in no way 'new'. I wish she was alive to ask her opinion (she was never short of opinions!)

I live overseas and am called foreigner a lot. At immigration we are called aliens!