Small blocks and lack of privacy are the two greatest reasons for Bitcoin's now inevitable regulatory and corporate capture. If you can't see it now I don't think you will ever see it.
A cheap, quic...
The ONLY thing that makess bitcoin unique is decentralisation. There are a 1000 networks offering, cheap, quick, private transactions. All of these have/will fail due to centralisation. If everything else is compromised to ensure decentralisation in the long term then that's a compromise we have to make.