My friends and I noticed this and commented on it in the late 90s. White Men were either absent or portrayed as idiots or uncoool or weak soy boys in commercials. If there was an interracial couple it was Black Guy-White Girl 95% of the time at least if not more. Fathers were also universally portrayed as fools the rest of the family had to tolerate. A lot of TV shows had the same themes.
This has been going on for a generation at least.
Mrs. L,TOWM and I saw the same thing in the 90’s, right before ditching most of what comes through the idiot box.
Lol. It’s been a mainstay in sitcomms ever since there were sitcomms.