So I look up YPDA and do a bit of background on them.

Hawaii chapter has mostly transplants from out of state.

They do plan on "getting together Sunday.

I also checked their Facebook page and am quite relieved to find at least 70% of comments are as follows...

I'm at the airport right now (ironically on my way to Canada) but I would absolutely be there this Sunday if I were on island.
I really wish I could go! Unfortunately, I'm still in Buenos Aires,
Very much wish I could, but I'm in Hilo for college.
Please let me know if there's anything I can help with here in Samoa.
How far is it (in blocks)? Might have to meet you at the hotel since I can't walk far.
would love to go, but it's my last yoga class for teacher training.
I'll be there in spirit
I'm rooting for you guys!
Stay safe!
I'll try to make it, I'm down with a horrible cold right now!!
Damn, open house day. I so want to be there...
I would love to go, but it's my last yoga class for teacher training.
Can't be there tomorrow morning, but glad people are getting together to make signs.
I was just googling for ideas for signs and found that Pinterest has a page with hundreds of creative ideas. I had to join Pinterest to see them all. Have no idea really what Pinterest is.

But if anyone is looking for ideas check it out.
A quick guide to how to make a sign might be useful too for anyone who hasn't done this before.I have dog training class at that time.
I wish I could be there to be in support of one another.
Wishing this was earlier in the day because I have an event to go to on the other side of the island at 6.
I wish I could join you, but I'll be there in spirit and have already pledged to give more in donations to the causes I support
I'd like to go but it's closing weekend for my son's play.
I wish I could join you guys in your march, this is important.
AND FINALLY.....
I *was* interested until I read the part about not having anti-trump signage and having to welcome any trumpers who'd pay us a visit. Seriously, are we supposed to extend an olive branch too so they can take it and beat us with it? If you're going to hold a protest, actually *protest*