I'm not certain that they were any worse but they most *certainly* weren't any better.
At least they (that is to say, Joe, JFK and Robert) were anti-Communist, played a pretty big supporting role in Joe McCarthy’s anti-Communist crusade, among other things. And I have pretty big doubts that JFK would EVER have supported abortion under any conditions (for goodness sakes, not even Martin Sheen supported abortion and notably broke ranks with Obama over that tidbit, and he’s left-wing enough to support Fidel Castro. If Sheen couldn’t find it in himself to support abortion, there’s definitely no way that JFK and Joe could have done so).