If the question isn’t on there, non-compliance is the only Avenue citizens have left.
As for fewer Critters, NY has lost almost half its House seats over the last 60 or so years. Sucks to be us, but you cannot tell me that hasn’t been great for the country as a whole.
Perhaps you have a point here. Fewer representatives are still fewer representatives when they they're all American-hating rats. Conservatives trapped in big blue states could indeed boycott.
If all conservatives in NY State refused to complete the census, the commerce dept would probably just estimate the population for representation in the House and for electoral votes.