No young person would vote for it either.

Not many would, but young people still have options at this point. For example some time ago it was a no-brainer to max out your pension contribution. Now, I don't know... Maybe I'd rather get a private fund (or funds) that I can access, while the national pensions are getting scrapped?

But if the next choice is between extreme nationalists and anyone else who wants to scrap the pensions? I'll take no pension over a potential civil war.

This is only true if elections are trustworthy checks on power. Given recent attacks by partisans and foreign powers, though, this is far from a certain thing.