AiBU to let ds chose his on party theme?

[Notanangryone]

So Ds is going to be 5 soon. He loves Angry Birds at the moment. It's a phase. He plays it occasionally on my phone. But he plays it imaginatively a lot at home on his own and in school. That is, pretending he is an angry bird and his friends are the bad piggies, that sort of thing.
He doesn't own any Angry bird toys.
He told me. He would like e an Angry bird birthday cake when I asked him.
I kind of expected him to say that.
My dh wants to get him a Minion cake as he thinks his Angry bird "obsession" is weird.
Ds doesn't really care much for Minions. He's seen the movies but doesn't really play it in any way.
I can see how excited he would be if the was an Angry bird one.
AiBU or is dh? I feel he's only 5 once and why not get him m what he wants Dh thinks he will like a Minion cake and thinks that's the end of it a day we should encourage his weird obsession.
In re grand scheme of things, this is such a non issue I know. But I feel my dh is sucking the joy out of it a bit and is being unreasonable.

I can totally see how real life AB makes a fun game for kids. It's got heroes, baddies, speed and explosions.
I found out that the AB characters had names- for example the yellow triangle is Chuck.

It's a totally normal party theme for a 5 year old boy!! My nephew was 6 last year and had an AG party, she bought all her party ware in the range op.

Obviously let your DS choose. Angry Birds is not particularly weird, I once did a My Neighbour Totoro party at dd2's request when not a single other person knew the characters.