Satoshi nakamoto put the 1mb there for a reason.

Lower blockchain growth

Faster verification speed

Less risk for half downloaded blocks

Easier on simple devices

Higher fees to reduce mining costs

Drawbacks?

Slow transactions

However, Satoshi Nakamoto already knew about a possibility of payment channels, to solve this.

Money is only scalable to some extend. We souldn't expect bitcoin to be so scalable.

The 1MB blocksize is more important than we think. It has to be re-implemented as fast as possible.