Looking back on what the british did during the road to revolution, which of these was the biggest mistake they made? 1. they killed too many colonists, such as those in the boston massacre.2. the methods they tried to keep the colonies loyal drove the colonies into revolt.3. the taxes they charged were too high to realistically get paid.4. they were never willing to compromise or back down in dealing with the colonies.5. the british's methods were too controlling for the colonists' taste.