The pictures, text, and profile are all fine. None of it would particularly stand out to me, but it's all fine.
As some have already pointed out, you're probably Asian, right? I am as well. It's fuuuucked up, but the truth is: we're not a very popular ethnicity. We just have to send out a lot more messages until we find someone. Yes, it suuuuucks.
And yeah, if you're only hitting up white guys, try expanding your taste in men.
Don't know about prostate simulators. I use silicone plugs and dildos.
The brands I can recommend are:
http://www.babes-n-horny.com/
https://vixen-creations.myshopify.com/
https://www.tantusinc.com/
http://www.xrbrands.com/ -> not all thier products are silicone, check the description.
Just take prep.
And those here that act like HIV is a death sentence nowadays, go educate yourselves.
My ideal: Hairy, but not too hairy. Fair body hair that doesn't curl much.
But that's just my ideal. It's not that important to me.
Rimming. I happen to be the odd guy who doesn't get much out of sucking (both receiving and giving), and rimming happens to be one of my absolute favourite activities (again both receiving and giving), so no contest here! 
Vegetarian here for about 15 years. Not planning to go vegan.
My particular thing: big, beefy jock-type dudes… with small dicks. Oh, yes.