Now tell me something. Are ALL people with allergies allergic to the same thing? Does EVERYONE who likes rap like ALL the same artists identically? Is EVERY shade of blue exactly the same color? Venn diagrams are your friend. Maybe try learning about them.
Also, has ANYONE made the claim that ALL THREE of the above traits of leftists apply to EVERYONE in the left simultaneously? You're not going to find any proof of that because people on the right in general will critically think and would tell you that the left are comprised of these types of people. Not that every single person meets all these criteria.