I have a surprise for you, we aren't really from Venus and Mars. I know: WOW!
I have read a lot of these weird arguments and myTakes. They are about what girls and guys do differently, who is more shallow, who should be the one asking the other party out and so on.
Some music aside...
I really have no clue how they get this information, but I have to guess: from their own experiences. It is very nice to read about your own experiences, but I would like to know some examples from your own life instead of reading between the lines, "all girls and all guys are like this and that".
I do not get how some people can't think outside of the box. You need to see that all people are different, beautifully unique individuals! The fact that you are a male or a female doesn't automatically give you a specific way to behave. There is much more into it. It is only the gender roles our society has formed that make us think we really differ much. It is sad how we grow up thinking we must be in a certain kind of way just because of our gender, but why really? Often these roles are very unnecessary and makes people insecure and life harder for some.
There was this myTake about who cares more about looks, girls or boys? And as the writer of this take was a guy, you all can guess the answer was GIRLS! Another myTake was about "Guys should pay for the first dates", well should they? I do not think there is any girl in this world that would really care that much if their dream guy won't pay for the first date. But the writer of this myTake actually was a guy, maybe he had some good points? As far as I read, it was all about him thinking girls want guys to pay.
There are really shy guys and girls on this planet. Even if they aren't the same gender they behave more alike each other than shy people and extroverted people. For example shy guys and extroverted guys can't really be put in the same category for everything. So if you have to use generalization do it right, say for example "many guys/girls". It sounds wrong almost every time to say "All girls/boys" or even "most girls/boys".
These traditional gender stereotypes have stuck for a long time. Sometimes they might be amusing but mostly not. It's not like there aren't any stereotypical girls and guys out there, but you can't really say it is very common. Wouldn't the world be boring if every girl and every guy was the same?