Does anyone think that the abortion issue has a lot to do with the results, or is support for liberalization bipartisan enough to make this a seat-by-seat issue rather than a national one?
It was and is a relevant social topic but i don't think it was decesive in this election. In my opinion the economic situation was. Both Macri and Fernandez have pro-choice and pro-life legislators in their ballots. I do think that the abortion/nuclear family debate boosted Gomez Centurión party as he's not a public figure known by the electorate and he still got almost 3% almost 5% in some provinces.
I went to Argentina on vacation four months ago, and, out of curiousity, I looked up election results, and noted that it seemed like the center-right party did best in urban areas. Isn't Capital Federal (BA City) the most right-wing area of the nation?
Even if I didn't talk a whole lot of politics with locals I met, I felt like there was a massive sense of dissatisfaction with the economy due to the rampant inflation. People were telling me that it had really gotten out of control. I just checked, and one dollar is now 52 pesos (it was about 40 when I was there in April and was in the 20s this time last year). Some of that is due to the post-election stuff, but the peso had fallen even before then. Still, it seemed like there was some hesitancy about going back to the Peronist government.
Not the inflation stuff, but there is a similar urban-rural divide in Brazil, with the Southeastern cities of Rio and Sao Paolo having given massive margins to Bolsonaro (or at least their states did).