The drugs were connotated with blacks and Mexicans. Those connotations were racist.
Later on, those connotations influenced lawmakers and policy was effected by it. This created racist policy.
Many of these racist lawmakers died. Others became less public about their racism.
Today, those policies still affect blacks and Mexicans more than whites, even though drug usage is similar. Therefore, the policies are still racist.
Thus if one supports the policies, one supports a racist act. Semantic arguments over whether that makes the person who supports them "racist" are moot. They're still supporting something that's racist.
Later on, those connotations influenced lawmakers and policy was effected by it. This created racist policy.
Many of these racist lawmakers died. Others became less public about their racism.
Today, those policies still affect blacks and Mexicans more than whites, even though drug usage is similar. Therefore, the policies are still racist.
Thus if one supports the policies, one supports a racist act. Semantic arguments over whether that makes the person who supports them "racist" are moot. They're still supporting something that's racist.