You mean hundreds of anonymous GitHub accounts or absolutely nobodies are risking something, as opposed to people who have proven track record of actually doing real work in the world of free software? Just wow.
Oh, wow. Maybe if you actually skimmed through the list of supporters you'd find that they're real people with real jobs strongly interested in FOSS from all around the world? Or are you, perhaps, a jingoistic xenophobe for whom only American opinions matter?
A bunch of 4chan kids signing a reactionary letter vs hundreds of respected names in the FOSS community.
One of these groups has a negative impact on society as a whole, the other are hundreds of respected people working for free or reduced pay to create FOSS software.