Why aren't there many MALE HETALIA FANS (much more cosplayers)?

You have a good point. Hetalia is basically a parody of the world's history. However, you have to consider how people come to discover the anime. They might stumble across it on anime streaming sites, where there is usually strictly the show itself. No fan bias is usually present. They might discover it by seeing fan art on sites like Tumblr or Zerochan. What I think is going on is many potential male fans are scared off by fan art, which a great deal of it is pairings. It probably makes them think Hetalia is a yaoi. However, if you are already a fan and have seen all of the anime and/or read all of the manga, you know it's not. But that's a hard thing for them to get past.
So I say if you are trying to get a male friend to join the fandom, keep them away from the fan art. At least until you get them to finish the anime. That way they realize it's just the fans having fun and not an actual part of the show.
And I'm not saying all the fan art is aimed at the female audience, there's a great deal of awesome art out there. But you know how alot of guys are. Gotta stay tough looking. XP

XD Well 2 out of 4 of mein Bruders are fanboys of Hetalia~! We cosplay all da the ^w^ I wouldn't say that it's weird~! Hetalia is funny and makes history fun again~! It doesn't matter if your a bro or a sis~HETALIA!! It's FUNNEH~! XDD

I have a dude in my Marching Band class who watches Hetalia....and my cousin watches it. (ALL BECAUSE OF MEEEEEE >:D)

like almost every boy in my class knows what hetalia is because of my friend and I xD

Well I know two guys who like it, but they're fairly young. The one other dude friend I got to watch it doesn't like it much because with the history theme going, he thought there would be some sort of fighting. Instead he got silliness and shounen-ai. It really is a girls show, being a world of all good looking guys. Now if it had been all big-boobed, air-headed chicks, there would be waaaaay more guy fans.

i personally think that guys dont watch it because they just are not as exposed to it. then again my hetalia group has 7 members and 3 of them are guys who like it because of the comedy. (they are our Switzerland, our America, and our Sealand)

I have a brother how loves Hetalia and does cosplay. He usually does Spain or France. He also likes yaoi too. I'm sure there are a lot of other fanboys like him out there too, they're just shyer than fangirls.

In my opoini,(our how ever you spell it)is because there's so many male charcters in the show.

I believe that it is become the fandom.The fandom is mostly yaoi,pairings and how hot the guys are.I'm sure if the fandom hadn't gotten so men based,that more male fans would hop on.Also,how dedicated how the female fans get scares away male fans.For instance,at my cousin's school,the female fans are absolutely obessesed,and do many things for the show that scraes my cosuin.So,now he wont even watch the show.(For his sake,I try to keep Hetalia away from him.)I mewn,a fandom with pictures like these would scare away any guy!(Its soft yaoi---but it is yaoi!And it might just be me,but it looks like Su-san is grabbing Finland's butt!))

(( I have two homosexual friends that love hetalia and even cosplay for it. Hetalia may be about war and stuff but i guess the way its explained,doesn't really pull in most males but pulls in the majority of females. ))

Probably the fandom. There's so much yaoi in the fandom that when dudes ran into the fandom, they assumed the anime/webcomic itself was also a yaoi? Or it might be because it's not badass enough or something. Shit, that's the best answer I can give.