Yes but why was it so? I can certainly understand why scart wasn't an option in America, because it was also called an euro connector, and in America only american standards will do 
But why didn't you have a similar alternative standard? Am I right in assuming that it was the movie industry that was afraid of the possibility for people to copy video tapes with decent quality?
Well, I'm not in America, I'm in Canada, but we shared the NTSC standard.
Not only did we not have something as good as SCART - we didn't even get separate composite / audio connectors until the early to mid 1990s on our televisions. We had to use the 75-Ohm RF "cable tv" connector.
You might have got the audio/video composite connectors on expensive TV's slightly earlier, but in the average price range it was 75-Ohm connector, or even worse, 75-ohm connector adapter going to the two TV aerial bolts on the back of the TV.