>>82421544 (OP)
I'm a Marxist that also prefers large boobs. I think the appeal of large boobs is primarily men that have mommy issues or a desire to retreat into their mother's arms and be coddled. This is why conservative men tend to prefer boobs, since they have a largely insular and arguably cowardly worldview.
Men who like asses tend to be more extroverted and open to risk-taking behavior, which is why it's more common on the Left. Ass lovers enjoy looking at a woman from behind where you have very little visual data about her. Her ass is all you can see. The rest is left up to your imagination. People who find new experiences appealing will be drawn to asses as every new ass they encounter is a dive into the unknown. Boob lovers on the other hand prefer the comfort of what they know. They don't want new experiences, they just wish to nurture what they have and reject everything else. They are also generally very paranoid and take a long time to warm up to people, but also become very needy as a result once they are attached to you.
I'm aware this indicates that I'm also cowardly and wish to retreat into my mother's bosom, but I can't deny it. I just want to be coddled by a nice lady.