Congress does not have the authority to abolish the electoral collage and Rangel, a smart guy, knows this.
Not singling you out since others have posted similarly, but read the text of the bill at the bottom of the original post. Rangel knows full well that an Amendment is needed and the text of the bill quite clearly states that this IS an Amendment proposal that would require a 2/3 majority of both houses of Congress to pass, followed by ratification by 3/4 of the states to take effect.
He also is well aware that there’s a better chance of Trump dumping Melania and marrying Hillary than there is of this proposed amendment being ratified. It’s all for show; he’s throwing red meat to his rabid left-wing base.