That's a sad picture, but yet it doesn't rebut my argument. The gang of leering assholes and the douche pouring the stuff are in the wrong, IF they do not own the property AND assholes either way, but that is beside the point.
If you own property and somebody else decides how you will use it, or attempts to, you have the right to defend your property. You sometimes believe that, but then you disavow that belief when it suits you.
Also, it is fact that in forced segregation (legal segregation) and forced integration the element of government force is the primary means. Using force as a primary means to facilitate a human interaction is where the problem begins.
Your fixation on the emotion of a circumstance, doesn't give one party the right to determine how another person will use their property and their body.
So tell me who has the right to force a human interaction on property they do not own ? Do you?