Ethical questions can seem subjective because:

Answer: i will tell you some other day

They are based on opinions

Explanation:

The answer a person can give on a ethical question can vary based on what they think is more important. For example if you ask: "Do you think the government should see what you are doing in order to prevent you being hacked". You can go with "No, my privacy is more important" or "Yes, I don't want to get hacked".