They were abandoned but alive.

Once you go down the road of solving problems by killing the people who have them, there's no limit to where the logic takes you. Homeless people are often also abandoned by those around them and suffer greatly. Should that result in their lives also being aborted? If the answer is "no" then you're making a distinction based on believing an adult life is worth more than a child's life, and it seems obvious why a lot of people would see it as an immoral stance. My own abortion views are totally middle of the road, but it's easy to see the logic of how people end up always opposing it.

The "far right" usually means the National Socialists, who were left wing. Hitler is on record saying so clearly. It only seems like a horseshoe because they were misplaced by left wing historians and academics for ideological reasons. Go read the primary sources, and you can see easily that Hitler and his supporters were left wing socialists, as they claimed to be.

Ceausescu was a communist, of course he was left wing. That's what the terms mean.