You mean those degenerate Clones that could barely speak and were limited to a single secret cloning facility on Kamino? Your definition of "infinite" is rather askew. Only one Clone was ever truly successful, and he's not even canon anymore as of Disney's acquisition. But say he was, there is nothing stopping the Forerunner from bombing the planet from a light minute away if they were truly that worried about Starkiller. The Forerunners posses a numerical, industrial, technological, firepower, speed, range and versatility advantage over the SW galaxy. There are no advantages here for the SW galaxy over the Forerunners, outside of a very select few superweapons that are at best considered civilian mining equipment to the Forerunners. SW has all of its eggs in too few baskets, take those out and SW has nothing else to stand up them. That doesn't even count the Flood and Precursors, god help them.