Quote:
Libertarian law, for example, is oppressive against people who don't believe a person can morally own land, and thus do not believe it is immoral to "trespass".
oppressive:
1. burdensome, unjustly harsh, or tyrannical: an oppressive king; oppressive laws.
2. causing discomfort by being excessive, intense, elaborate, etc.: oppressive heat.
3. distressing or grievous: oppressive sorrows.
Preventing people from coming on to your property is none of those things. If I believe you're doing something immoral, you're not oppressing me. By that logic, gay people are oppressing Fundamentalist Christians.