GP may have been referring to the political stand of taking on ICE as a customer. GitHub brass can pretend they're being apolitical, just as IBM did...

Sure, and they're welcome to clarify how the police should be held accountable when applying force to citizens but should not be held accountable for applying force to non-citizens.

Or how certain human rights can be maintained for one group and not the other.

ICE inflicts something that seems an awful lot like police brutality on a large number of people. The Kafkaesque horrorshow that legal asylum seekers are subjected to is one of them. The conditions in which they hold people, in general, is another.

The lies and high pressure tactics they use to force people to sign away their rights are also concerning.

It's really not that different of an issue (black lives matter but Latino lives don't?); I think the word you're looking for is not partisanship but intersectionality.