That’s not true. Men can do lots to enhance and distinguish themselves. It’s not all about makeup. Subtle differences in clothes or accessories make huge differences, especially in men. Haircut and basic grooming. Fresh breath. Body language. Carriage. Scent. Tattoos. Piercings.
These things are observable and work to make men appealing or not. Approachable or not. Interesting or not.
And that’s before you get to behavioral turn ons/turn offs.