@Sh4dey You're right. This is a gag manga so I don't see an issue here but it's true that a lot of people would be mad af if the genders were reversed. Get used to it, this is the society we're living in now. Racism and sexism are tolerated as long as it's directed at the "right race/gender".
People getting frustrated in the comments about sexism is laughable. You found it offensive, I found it funny and that's why i'm happier than you are LOOOOOOOOOL