I read the discussion and I agree with your points, but having small sized blocks is neither in favor of bitcoin's long term survival. 

In the recent 144 blocks, according to mempool.space, the average transaction fee is ~$30.  This might (over)sustain miners' incentive (and network security), but not the on-chain usability.  I hope we all agree on the part that paying $30 is an outrageous amount (only for median size!). 

We have invested in protecting ourselves from 51% attacks, but I do not see anyone referring to "clogging up the network" as a potential attack vector as well.  Rising the block size by a factor of x, would make it x times more expensive to clog up the network and make the currency practically unusable on-chain.