I do not know how the risk of being attacked by police for legally carrying a firearm compares to that of being attacked by unauthorized criminals. I do know that it has happened many times.
A lot of risks aren’t “all that great”, but are easy to avoid. I do not care to place my trust in the education of any policeman whom I do not know, nor do I consider it my business to educate police or the general public.
IMO the police question depends greatly on your location. The response in Chicago compared to Tuscon should be much different.
So conceal your weapon. Makes no difference to the thousands who openly carry across my state every day.