The okay symbol either stands for Okay, or the eye of horus, but the O in the thumb and pointer need to look more like an eye than an O, for it to pay homage to horus.

So, that leaves us to 666 symbol or homage to Lucifer or other fallan angles, or more likely sodomy. So many republicans are crypto-pedophiles. In other cultures and religions such as Islam this hand gesture is a reference to sodomy and sexual degeneracy.

The last use for this gesture is gabbai, (think about the homeypot website Gabai which is owned by a Jews) also known as shamash שמש (sometimes spelled shamas) or parnas or warden (UK, similar to churchwarden) is a beadle or sexton, a person who assists in the running of synagogue services in some way. The role may be undertaken on a voluntary or paid basis.

They gesture this to the guillible, probably as a thankyou.

As for white power. Nope. Most of the people throwing about these gestures are Jews or Zionists or Nazbols.