I'm not really sure that has anything to do with my comments. "Conservative" and "Liberal" are both relative things.
Being alive and being dead aren't quite as relative. And, being alive isn't conservative or liberal, and being dead really isn't conservative or liberal. The ways in which we conduct ourselves while we are "alive" can be construed as conservative or liberal. And, ways in which these bodies cease to function (achieve dead-ness) can be construed as conservative or liberal. But, I firmly believe that these contrasts are exploited by people who stand to lose or gain a great deal on the outcomes, or just keeping-up the appearance of a contrast! And, which in-turn, distorts their importance or lack-of-importance to people who, otherwise, don't give the matters much thought, or, probably, have a more universal understanding of them until the exploitation creates a more nuanced perception.
What your cartoon represents, to me, is human tribalism and its detrimental ramifications! I've seen liberals and conservatives cling to tribalism equally, and with impunity.