It shall be unlawful for any person, whether or not within the named classifications set forth in this Part, to aid, incite, compel, coerce or participate in the doing of any act declared to be an unlawful practice under this Part, or to obstruct or prevent enforcement of compliance with the provisions of this Part or any rule, regulation or order of the Human Relations Commission or to attempt, directly or indirectly, to be an unlawful practice.