My definition of doxxing comes from wikipedia and is supported. People here think their opinion of what doxxing is, is real, despite no proof or actual definition. I already went through the definition and shown that this is indeed doxxing. Want to read it, here

https://en.m.wikipedia.org/wiki/Doxing

And yes, this post contains private information. It contains the information of "these are this guys parents" which would only be known to the select few neighbors at best. Furthermore, it contains information about their political beliefs. So yes, it absolutely is doxxing with the intention of shaming the parents. The info doesn't need to be completely private and hidden - aggregating info from public databases or facebook counts as well.