There was a far more productive reading you could have taken.
Free speech allows Wikipedia to publish unpopular or controversial speech, but that's not the same as having an editorial policy that contributors are allowed to express themselves on the platform, which would obviously be inappropriate.
Wikipedia documents opinions and ideologies but that's not the same as supporting the expression of the opinions and ideologies of its contributors. (See above.)
I'm _not_ claiming that Wikipedia has or doesn't have unpopular opinions. I'm making a distinction between the legal framework in which Wikipedia exists (they _can_ publish unpopular or controversial speech) and what Wikipedia does (they intend not to express their own opinions at all; whether you believe they succeed is immaterial).
OP was conflating the two, but Wikipedia has no obligation or principle to be a platform for free speech. It's completely irrelevant.
Free speech allows Wikipedia to publish unpopular or controversial speech, but that's not the same as having an editorial policy that contributors are allowed to express themselves on the platform, which would obviously be inappropriate.
Wikipedia documents opinions and ideologies but that's not the same as supporting the expression of the opinions and ideologies of its contributors. (See above.)