One man's activist is another man's bigot.

> There is a world of difference between being for something and against something

They are the same. If you are for something, you're also against not something.

Is there an objective way of distinguishing between an activist and a bigot? The CCP can just say that they consider this activist to be a bigot.

Internet platforms should never have been in the business of censorship. Unfortunately, liberals encouraged them to censor their political opponents for short term gain. The result is sad but predictable. Any speech that offends someone powerful is now subject to possible censorship.

The easiest distinction between activism and bigotry is to tolerate everything except intolerance itself. Activists mostly fight for more rights/freedom, and bigots mostly look to prevent that. It's not a perfect boundary, but I've found it works well for the significant majority of cases.

A lot of activists are highly intolerant of views and speech which don't align with their activism, so your argument isn't really a very good one.