All that rage and hate fired up by a mob mentality. I’d say nobody was safe. Now there were definitely people in that building who would be LESS safe. Popular or well known democrats whose faces might be recognized, women, POCs. They were certainly most likely to be targeted and in the greatest danger. But I suspect that the average republican congresscritter was wise to not assume safety in that crowd and to hide, even if they intended to vote against the count. That mob of terrorists was out for blood and it would behoove republicans to realize that fact.
Edited to not repeat myself too much.