Different conceptions of what liberty means.
For the left it means not having your life dictated to you as a result of your socioeconomic circumstances.
For the right it's the really important stuff like being able to buy a slightly bigger coke or to call someone a "n****er" without getting in trouble
When you're done sodomizing that strawman, perhaps you can try engaging an actual argument.
It's hyperbole, but it's not a strawman. There's no real use in denying the fact that there are different conceptions of what exactly constitutes freedom; just the same as what constitutes liberalism, conservatism, democracy or just about any political concept is up for debate.
The trouble with the argument being presented here is that is presents "liberty" from a wholly biased viewpoint that does not reflect the ways in which people of the left, radical or not, view liberty.
As a simplistic example, a anarchist may consider that private property is by its nature authoritarian, as it inherently restricts other people's liberty of access to the property. Obviously, most people would vehemently disagree, but there isn't any ordained "nature" that required this to be the case, as fundamentally liberty is only ever what social convention deems it to be.
Added to this, a simplistic understand of liberty as "freedom from any constraint" is obviously simplistic, given that my freedom to do "X" could impinge on your freedom to do "Y" (me taking an unpaid internship may cost someone who does not have the resources to find that particular luxury, for instance).
So yes, there are different conceptions of what constitutes "liberty", and the right tend to view liberty through the framework of "removing constraints" whereas the left tend to see it through the framework of "enabling opportunity".
And the point still stands, that a lot of the decrying of attacks on liberty that we see are quite trivial, and are often more complex from that perspective than people would like to make out - why is the SJW wanting to no platform Richard Spencer inherently more "authoritarian" than someone whose ideology demands that someone should live their entire life in the country their parents were born in?
Happy?