re: Every time I hear someone use the term “ if you are a true conservative “

quote:

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I like folks who can write sentences that are not replete with solecisms. I particularly dislike it when writers refer to people using "that". But that is far from your worst error I quoted.

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For being so critical of others’ writing, you could have done a better job getting your point across here.

Is “that” referring to people? Or something that people do?