Well he thought it through.
Good (or bad?) for him is that getting to Gensokyo in rl is kinda hard...

Clearly he doesn't know fuck all about Gensokyo then, since Higan isn't Gensokyo exclusive, or else there wouldn't be an abundance of outside spirits that overflow every 60 years like in PoFV.

He should totally kill himself, it's work for sure. Totally serious.

True, Youmu lives in the Netherworld with Yuyuko, so if he killed himself and doesn't go to Hell, he's guaranteed to visit Netherworld.

Not that Youmu knows who he is anyway. But it worths a try.

You're missing the point, guys. What he's saying is that, because he's not crazy, he knows that he can't get to where Youmu is by killing himself because she doesn't exist.

I gotta say, it's the first time I've heard of someone wanting to be crazy so they could kill themselves because they'd believe it would accomplish something. Amazing line of reasoning. I can't tell if he's a genius or an idiot.