Lest we forget, stations are still showing those MASH episodes and All in the Family episodes - not to mention Mel Brooks' films. Political correctness may stop jokes like that in new programs but it somehow doesn't stop old jokes from being re-run. At the same time, no OTA stations or cable channels are showing Amos n' Andy or Beulah.
Funny thing about Beulah. Take the same premise but make the smart, sassy maid who solves her employers' problems and make her White and you've got Hazel (which is still being re-run).
Studies done back in the day showed that many viewers agreed with Archie and thought All In The Family "promoted" their views.
Archie was very similar to another character whose time-slot her inherited: Ralph Kramden. Ralph kept threatening to hit his wife (domestic violence, spousal abuse) and it always got a big laugh from the studio audience. Of course, maybe that was because nobody ever thought he would be really do it. They did tone down the domestic violence angle on The Honeymooners. In early seasons, Ralph would say, "One of these days, Alice, pow right in the kisser." In later seasons, he'd say the vaguer "to the moon, Alice."
On All In The Family, there were occasional jokes about Archie supporting California governor Ronald Reagan who was considered extreme, a bit of a wacko and a long-shot (he'd lost the Republican nomination twice). Archie said he only did it to drive The Meathead crazy.