This I agree with. Covering up discoloration, acne scars, and bumps with concealer/makeup is helpful especially for a temporary fix.
"Why can't guys"
Because
- differences in facial luminance between men and women
- skin thickness/texture difference
- masculine dimorphism (mainly prominence of secondary sex characteristics such as facial hair)
Make-up is designed for females not men. It benefits men temporarily in terms of covering skin issues as mentioned above nothing more.
It gives men a feminine "touch", makes them appear more androgynous, and prevents them from doing classically masculine j*bs and activities lest they be exposed.
You should care because women will pick up on it and think you're gay or look down upon you and see you as less masculine.
Women also don't like to see men "cheating/frauding" even though they do it themselves.
Other men will make fun of you and lose respect for you if they ever find out.