...but I think a greater concern we can all agree on, is that for the type of communications that Twitter does - Twitter is effectively a monopoly. The people being censored here can't even themselves go to any alternative platform, because there's really no other platform at that scale for that content format.
...that's a bigger problem, because it gives Twitter the power to shape global communications unilaterally. Something no corporation should have the power to do.
I think, broadly, that censorship should be regulated by democratically elected bodies - not corporations.