Growing up with these programs in the 50’s and 60’s was great. No one was offended. It was fun. No one I know did something crazy watching this stuff. We all had cap guns and played Army and Cowboys. You probably can’t even buy a cap gun nowadays.
I'm sure there are millions of African Americans, Native Americans, Asian Americans, Latin Americans, Jews, people from the Middle East, etc., who would disagree with you that no one was offended. Just because people didn't do "something crazy" — like take up arms or rant and rave on street corners over racial stereotypes in children's cartoons — didn't mean they didn't find them demeaning and upsetting.