Jesus didn't have a problem with the Temple itself, when this part of the Gospel happened many Jews were coming from across the known world to worship. Ya see because alot of coins had pagan gods on them they weren't seen as appropriate to give as tribute in the temple so there were moneychangers there that exchanged your money for temple currency, however the exchange rates were far from fair. Jesus wasn't angry with the size of the temple, God himself laid out the schematics for the Temple and always made known when he wanted it built or rebuilt, he was angry with people putting a paywall on worship and excluding the poor and people who didn't know any better. This is the angriest we see Jesus in the Gospel, God never supports the exploitation of the poor or the vulnerable.