What nugget said. It's my fault that I didn't put in my OP the fact that the fund is indeed in a third party's hand (although I don't find it impossible that it's a WTS puppet company).
The issue is very similar to the UN debacle. It's not about whether it is ok in itself what they do, it's that they enforce rules on the R&F that they purposely neglect.
I'm not well versed in the US law, being half a planet away, but I imagine they have at least one option available: refuse the donation.
For the record, here's the mentioned 1 Cor 10:25,26: 25Eat anything sold in the meat market without raising questions of conscience, 26 for, "The earth is the Lord's, and everything in it." Now try to tell this to the elders when they question you why you're eating blood pudding Or more on topic, buy stocks in a tobacco company, and wave 1 Cor 10:25,26 to the elders.