I'm guessing you missed out on the Snowden revelations? Or the news articles about federal agents literally laughing at private dick pics.

And your second paragraph seems to go on the premise that the average person care if there is a backdoor.

I don't know why you wouldn't take security seriously, when even the US government is telling everyone to be careful where they supply their devices because of spying. Just don't trust them to point the finger the right way.