Easy, I use political science terms and traditional analysis instead of terminally online ones. The important thing to remember is that liberal vs. conservative is an ideological midpoint for the discourse being discussed and/or measured. You can apply this to any group or discourse — in the OP it’s being applied to the whole of a nation’s body politic. However, you can just as easily apply such a division to only self-described leftists — thus creating a conservative subgroup who still exist well to the left side of the entire population, but are to the right of the other ideological half of the spectrum of this subgroup.
There isn’t an objective midpoint in ideology that applies across political systems and time. Which is good, because the overall trend throughout history is leftward and a relative system is able to both capture that as well as provide descriptive value for a given measurement period.
No they are not and the median wage is up almost $16 over that same period. This image is a lesson in why you don’t lie or make a point that is already sound — it kneecaps your entire argument.