Erase MacDonald and you may as well erase Canada and call it something else. Sure he was imperfect, as are ALL politicians past present or future. But MacDonald was an instrumental partner and advocate of constitutional reform for decades and without him there may have been no Coalition, no Confederation,  no railroad, perhaps no Canada or perhaps a worse alternative result. Revisionists quarterback the past with todays standards, seek to appease by pretending to wipe the slate but alienate others in the process. In that respect they are no better than Taliban or ISIL destroying ancient monuments, instead of understanding the parts that were greatness and good and which enabled the present. School boards don't stop there! Examine all our historical figures under that same myopic microscope,  cherry pick out the worst that anyone did or said and there will be few Canadian historical figures left to name anything. Even Pierre Trudeau would not survive that level of scrutiny.