He is asking about 'reducing blocksize,' not increasing it. The points you listed are related to increasing the blocksize. I think the last person to ever bring up anything of that nature was Luke, with his proposal to reduce the blocksize to 300KB, with a growth function that takes it to a max of 30MB or so. That was actually a very good proposal that unfortunately did not see the light.

But yeah, honestly, I have yet to see any serious voices wanting to reduce the blocksize just to limit the blockchain growth. I don't think such 'ideas' would have any community support, especially not with the current fees.