Looking over their concerns, I’m not sure that they have a leg to stand on. The claim they’re making is that they’ve measured an increase in hate-related tweets (I’ll take them at their word on this) and then they associate this with Musk taking over.
They present no evidence for this later claim and do not, as far as I can see, make any attempt to compare against increases in hate among other social media platforms.
Grooming, for example, is one topic they covered. But this is a topic that Republicans have been pushing increasingly as election season spins up. Musk didn’t cause that, and that kind of nonsense can be found on Facebook and reddit as well.
I’m inclined to sympathize with an underdog nonprofit, but in this case I just can’t see why they expected not to get pushback on such poorly grounded claims