It's funny how a lot of western countries think their own charities are best placed to support people in other countries rather than directly funding a local based charity or helpline.
However the article makes clear the US wasn't directly funding Stonewall but the US was contributing money along with other countries ie "Funding from the US came to Stonewall through the Global Equality Fund (GEF), administered by the US state department, which has given the charity more than half a million pounds in the past three years. The GEF focuses on “advancing LGBTI rights around the world” and is a pooled fund with contributions from numerous countries and private businesses, but it has not published accounts since 2015."
Although of course it maybe that the US gives the lion share to this GEF which is why Stonewall is sounding the alarm, or that it is administered by the a US state department which means if they implement Trump guidelines the whole fund should close! List in wikipedia as to which other countries contribute to this fund https://en.wikipedia.org/wiki/Global_Equality_Fund
But this example gives the possibility that other funding routes might be exposed by the Trump administration clamp down. (Not forgetting that women in some African countries have lost life saving medicine because of this cutting of aid.)
The problem with funding is that funders always assume the larger more corporate charities are the best us of money, rather than say distributing "seed money" to small locally placed groups.