If any sentence, clause, section or part of this Chapter, or any tax against any individual or any of the several groups specified herein, is found to be unconstitutional, illegal or invalid, such unconstitutionality, illegality or invalidity shall affect only such specific sentence, clause, section or part of this Chapter and shall not affect or impair any of the remaining provisions, sentences, clauses, sections or other parts of this Chapter. It is hereby declared to be the intention of Council that this Chapter would have been adopted had such unconstitutional, illegal or invalid sentence, clause, section or part thereof not been included herein. This Chapter shall not apply to any person, firm or corporation, or to any property as to whom or which, it is beyond the power of Council to impose the tax herein provided for.