Isn't that his point? Plenty of you exist, yet your party will not represent your interests. The "left" party that you vote for has chosen a set of values that are contradictory to your own, and you have no recourse because who else will you vote for?
It depends on the specific politician but I think a generally accurate characterization of the left is that they want to restrict gun access (some of us would say that'd be a "sensible restriction" while others would disagree). There are some notable exceptions here from rural states. One of my Senators, Bernie Sanders, is actually rather pro-gun rights coming from a state that has a strong hunting tradition - though he is less in favor of handgun access.
Uhm... you do realize there are plenty of us on the left who adopt exactly those positions?