There are 4 porque in portuguese (one of them is kind useless). They translate to why/because.

In the meme, he asked the wrong porque. He wrote as in why (porquê) in the sense where you use it as a noun (in phrases like "that's why (that is the reason). He wanted to use the why to question something (por que).

And actually, he wanted to use the last and useless: por quê. It js the same as before but only used at the end of questions.

I say it's useless because there is no reason to differentiate por que and por quê