My experience with outsourced folks from extremely low wage countries is that the quality of the work is extremely low.
I read once that in many of those countries that many companies outsource to there’s 3 tiers of tech workers, and every tech worker is trying to get to the third tier as quickly as possible: those good enough to work in tech locally, those good enough to work in tech locally for an overseas firm, and those good enough to work in tech for an overseas firm and gain a visa to get the heck out of the country.
The poor quality work from low wage outsourced labor makes it very easy to let sentiments in the same vein as racism sink in, so one always has to be careful not to let those sentiments transition into racism. But just because some anti-outsourcing sentiment comes from racism and some comes from poor quality work doesn’t mean that complaints of poor quality work from outsourced workers directly comes from racism