That's just how sitcoms were done in that era.

It’s really campy but it’s got some great moments. And it’s got Katie Segal.

It's very much a product of its time. There are still a ton of good jokes in there, but there are at least a few jokes per episode very clearly punching down and mean-spirited in a way that's very uncomfortable, or just plain tone-deaf to modern sensibilities. If you can let those roll off you as being a product of 30 years ago, you can still enjoy it.

Incidentally, it's not just Married With Children... there's tons of problematic stuff from this era. Family Matters was a very progressive family sitcom for the time, but it still eventually turns into Jaleel White doing an offensive generic Asian accent pretending to be Bruce Lee.

The humour of it is basically each character hurling insults at the other characters. Personally never been a fan of it either.

it was filmed with a live audience (with reaction prompter)