these ants (?) came out of absolutely nowhere (honolulu, hi)

https://imgur.com/a/ktzwlW3

went to feed my pets and saw these swarms of what look like ants (?) in the cabinet, then noticed several of them along the ceiling as well. they were not there as of a few hours ago, and now there are so many of them! the regular little ants we have in the house are all black and slightly bigger than these guys - these ones are teeny tiny and seem to have a white segment on their body (??). are they termites? if they’re ants, what kind of ant is this? why is it suddenly doing this? are these clusters of eggs? there seems to also be some kind of white substance that’s not part of their bodies in the same areas they’re swarming. location is honolulu, hawaiʻi.