SPRINGFIELD — Illinois Attorney General Kwame Y. Raoul joined 37 other attorneys general Thursday in filing a lawsuit against Google LLC, alleging the company illegally holds monopoly power.The complaint was filed in U.S. District Court for the District of Columbia and accuses Google of engaging in anticompetitive practices that led to customers having less choice, less online privacy and less protection for their private information. Alongside Illinois, 34 other states, the District of Columbia, Guam and Puerto Rico are …