The demographics being pissed are different.
When Voat, and then Ruqqus, were formed, people leaving Reddit were
- a minority of informed people, smelling the bullshit from a distance, and genuinely concerned about freedom of speech; and
- a majority of clowns, who don't really give a damn about free speech - they were pissed that their specific discourse was being banned.
That is not what is happening now. The ones leaving are not doing so due to "I can't say slurs any more! ;_;" like that majority, or "I'm concerned about deeply abstract matters" like the minority. The ones leaving are the most contributive people, who know that the boat is sinking, are seeing it sinking, and want to get away ASAP.