It's understandable that you're feeling frustrated in this situation. Whether it's fair for your parents to get mad at you for not washing dishes depends on a few factors and the expectations within your household. Here are a few things to consider:
Communication: Have you talked to your parents about your perspective and explained that you do wash the dishes you use? It's possible that they may not be aware of your efforts, and having an open conversation can help clarify any misunderstandings.
Household expectations: Different households have different standards when it comes to chores. It's essential to understand what your parents expect from you regarding dishwashing. If they expect you to wash all the dishes, regardless of whether you used them or not, then it might be reasonable for them to get mad if you're not meeting their expectations.
Sharing responsibilities: Dishwashing is often considered a shared responsibility in households. If you're only washing the dishes you personally use, it's worth discussing with your parents if there can be a more equitable division of chores. Perhaps you can alternate days or assign different household tasks to balance the workload.
Consistency: If you're consistently washing the dishes you use, it's valid to express your concern about being unfairly blamed. It might be helpful to track your efforts for a while and show your parents the consistency in your actions.
Ultimately, finding a solution requires open and honest communication with your parents. By discussing your concerns, clarifying expectations, and exploring alternative arrangements, you can work towards a resolution that feels fair for everyone involved.