Last week’s Illinois Supreme Court ruling that knocked an anti-gerrymandering constitutional amendment off the Nov. 8 ballot was a big setback for democracy in our state, but reformers can’t give up. Gerrymandering — drawing the borders of voting jurisdictions in a way to favor one political party or another — has been around since at least 1812, when Massachusetts Gov. Elbridge Gerry drew up jig-sawed district borders to gain a political edge. Ending the practice won’t happen overnight, and it will take a grassroots rebellion. The pols who now draw the lines, effectively making your vote irrelevant, love things just the way they are.