I try and donate where I can, but stuff like Signal, that refuses to employ engineers outside of the US because "talent doesn't exist anywhere else" is where I draw the line. Yes, opensource donations are amazing, but not for projects with attitudes like that.
I donate at least 1k a year to opensource. There is no shortage of good opensource projects deserving donations; good in the sense of quality and those that fit into my worldview.
I'm a fierce believer in remunerating opensource and of way stronger political opinions. What I won't donate to, is this idea that the US is the only place on the planet where skilled workers exist that can do this type of work. Orgs believing in US execeptionalism are great. Go be exceptional, just without my money. They won't miss it.