There is no reason for the system to be clogged. The original vision was to scale up the size of the blocks as Bitcoin grew, with the assumption that storage, RAM, and bandwidth would increase according to Moore's Law to accommodate the scaling. Bankster-led Blockstream has halted the growth of Bitcoin by buying out and taking over the Core development team and enforcing the limit in the code to choke off the number of transactions. This is making regular p2p transactions impossible (who is going to pay a $2 fee to send $2?).

Now that Bitmain is going to start mining bigger blocks, we're going to see giant growth, as the price grows in parallel with the number of transactions. Bigger blocks = more transactions = higher price ($10,000 probably by Dec '17)