I appreciate the input so far. It seems obvious to me that there is a wide range of what can be poly.
Can there be poly without romance? What do you all think? (Mind you, polyamory is a subset of nonmonogamy.)
Depends what you mean by romance. Do you mean romantic feelings, or some sort of action?
In the first case, I would say no, since polyamory is defined by the presence of romantic feelings for multiple people (even when there isn't even any relationship at all). In the second case, then yes, since one does not need to act on one's feelings for those feelings to exist.
To answer previous questions:
Is poly about sex?
Since poly can involve sex or not, I would say no. Especially since "about the sex" seems to imply, to me, that sex is the most defining feature. To me, poly often involves sex but does not have to.
If you remove the sex, do you just have friendship?
No, you have friendship plus romantic feelings, aka a non-sexual relationship. You may even have romantic feelings without a friendship in some cases where partners who are in love don't have an established enough relationship to truly consider each other friends
Can polys have romantic friendships?
I'm assuming you mean platonic relationships, if so, yes. You could also mean being friends with someone you happen to be in love with (whether the love is returned or not). Which is also a yes.
Can you have romance without sex?
Sure. Romantic relationships rarely start with sex even when sex is eventually involved. During that period of time, there is romance without sex. Some relationships also see the sex taper down without the romance disappearing. And of course, some people are never interested in sex in the first place, or have a partner who isn't even though they personally are.
How about sex without romance?
That definitely exists. It's called casual sex. It can also be less casual in the case of friends with benefits or long-term play partners I guess.
Can asexuals be poly?
Anyone who experiences romantic feelings can be poly. That includes romantic asexuals
Are poly asexuals messed up?
This is an uncomfortable question to see. We constantly hear that poly people are messed up for being poly, or aces for being ace. I don't think either is messed up, taken alone or in combination.