I am an investor. I am interested in block size. Ergo, claim is demonstrated as false.
Ok. I'll rephrase that in a manner that even you can identify with.
"Not one investor is remotely interested in blocksize, capacity or any other monetary vehicular niceties if it means the loss of 90% of the value of their holdings". (As it does when a suffix is added to the word "Bitcoin").
In other words, the market is arbitrating between stores of value and technologically versatile investments. Bitcoin is the latter so in that respect the one with the least tampering will be considered to have the maximum store of value. It doesn't need to support a gazillion transactions per second, it only needs to be more valuable than it was last year and support 7 transactions per second.
For performance and functionality, the market looks to either Visa or alts.