The general consensus among experts frequently turns out to be wrong. In the limit, it is always wrong. The whole point of getting an education is to have the ability to come to independent conclusions and sort through which conflicting opinions among experts are closer to "correct", and which are not.
If you do original research, which I have done, the entire point of the operation is to point out how previous experts got it wrong, and why, and then support the position with empirical evidence.
Your attempts to bully me into accepting your position through an argument from authority do not faze me as a consequence.
As for your comment on gun ownership, sure, the share of households owning at least one is more or less sideways over the last few decades (+/- 40%), but the number of guns is, as stated, over one per man, woman and child in this country. Statistically speaking, the presumption has to be that every citizen a police officer deals with is armed.
Police deaths have gone down as both gun ownership and concealed carry numbers have gone way up. I don't think it's hard to see why that's the case - because deaths by police violence are also way up. The implication is that "shoot first and ask questions later" makes them safer, and me less safe.