stigmatize (someone or something) as (something)
To characterize or label someone or something as being something considered disgraceful, shameful, or contemptible. She has spent the entire election trying to stigmatize her opponent as a weakling. Just because you're a total prude doesn't give you the right to stigmatize other people as sluts!
stigmatize someone as something
to brand or label someone as something. The opposition will try to stigmatize you as a spendthrift. Tony was stigmatized as a poor loser.