Here is the deal... What you and the system needs to understand is that when a public servant enters onto/into private property without a warrant they are legally trespassing without permission from the owner.
LE has absolutely no legal authority to trespass at just personal discretion and/or suspicion.
At that point they have no more legal authority than any Joe blow civilian stranger from off the street. They no longer have any legal authority to ask or command one damned thing let alone conduct an investigation without a warrant.
Do you feel you are legally obligated to answer questions from a total civilian stranger off the street trespassing on your property? There is absolutely no difference here with this interaction and many many like it that happen all the time.
Unless there is a sign up that says “No Trespassing,” there is no law broken, anymore than if someone walks up my driveway and knocks on the door. Was there a “No Trespassing” sign clearly posted on the driveway? I doubt it.
Second, I have the right to belch, burp, pick my nose, grab my crotch, etc. when interacting with someone. That doesn’t make my behavior “constitutional.” These black “victims” would be far fewer if they simply acted cordial.