Not necessarily: foreign workers are a not at all representative of the country they come from, there's huge selection bias at play. For a real-world case, the vast majority of Russian co-workers I've met over the course of my software career are very much against the invasion of Ukraine versus ~70% of the Russian populace as a whole. I don't think this is preference falsification, given that they're open about other things like opposition to NATO expansion. This disparity exists even inside of Russia, professionals support the war less than average, but I bet among people who choose to work abroad there's greater degree of cosmopolitanism [1]. And for discrimination, I bet foreign workers are more empathetic about discrimination being a minority themselves in a different country. Of course every company should be vigilant against discrimination, regardless of the demographics of their workforce.

1. I don't mean to lean into any negative connotations of the term, quite the contrary: https://en.wikipedia.org/wiki/Cosmopolitanism