If laws were enforced unfairly over a long period of time, people today might react similarly to how the colonists reacted to British rule leading up to the American Revolution. There may be widespread and sustained protests, civil disobedience, and other forms of nonviolent resistance. People may demand changes to the laws and seek to hold those in power accountable for their actions.
At the same time, there may also be more extreme reactions, such as violent protests or even armed conflict, depending on the severity of the situation and the response of those in power. These reactions would likely be fueled by deep-seated grievances and a sense of injustice, and would pose significant challenges for those in authority to address and resolve.
In any case, unfair enforcement of laws over a long period of time can lead to deep-seated social, economic, and political tensions that have long-lasting effects on a society. It is therefore important for those in power to be responsive to the needs and concerns of their citizens and to ensure that laws are applied fairly and justly.