From what I read, the protests against Morsi are much larger than the groups of his supporters. MB headquarters have been firebombed; 5 last I read.
Many of the Brotherhood headqauarters are being set on fire or ransaked.....the crowds for Morsi are hard to find photos of...it looks to me like as soon as they post one someone is taking them down...so the opposition doesn’t seem to be giving them an inch!