I guess when they start administering ideological purity tests at the bagel shop, I'll know who to thank. After all, providing any type of sustenance or service to a person with the wrong political beliefs helps enable their wrong-ness, doesn't it?
The other is that it usually takes serious labor and negotiation to land a government contract. It's not like ICE went to some Web UI and bought GitHub Enterprise with a company credit card, and now we're asking GitHub/MS to ban them from the e-store.