Ahahahaha

OK, let me preface this by saying that I can fully accept that "large wheels are pointless for makeinu and some other cyclists." 100% on board with that.

Separately, some people just like the ride, feel, convenience, novelty, non-conformity, whatever of small-wheeled bikes. That's also perfectly valid.

And if you're happy with your bikes, then there is absolutely no reason to change.

But.

When comparing "like to like" -- which is, of course, the only rational and fair way to approach the issue -- larger wheeled bikes:
• are more comfortable
• are more stable
• offer better gearing options
• have vastly better ground clearance (for both drive train and panniers)
• offer more fit options (exception for Bike Friday)
• offer more wheel and tire options
• have more widely available parts
• have more frame material options (i.e. currently, no carbon fiber folding / mini-bikes)
• are less expensive

Some of these aspects can be compensated for; e.g. adding suspension makes a small wheeled bike more comfortable. A few aspects cannot be corrected, such as clearance and tire/wheel/parts availability or expense.

More importantly, as with everything in bicycle design (and life ), design choices involve certain compromises -- either in performance or expense. E.g. if you add mechanical suspension to make a 20" bike more comfortable, that adds weight, complexity and slight performance loss. (Also, in order to compare like to like, you must compare the ride of a 20" suspended bike to a 700c suspended bike.) Or, you may need to spend $500 - $1000 more for a almost-no-compromise Bike Friday New World Tourist than you would for a comparably spec'ed 700c touring bike.

I.e. we can add a few things to the "700c is good" list, including: touring, long distance events, commuting, bad weather riding, dirt trails, gravel trails, just about any off-road use, club rides and paceline riding. 20" can be adapted for some of these uses, but at a cost.

20" bikes clearly have their advantages -- for some but not all applications. I would even say that folders are a good choice for a much wider piece of the market than they currently hold, particularly for urban dwellers, commuters and frequent flyer bike tourists. But these benefits -- and your subjective experiences and personal preferences -- hardly renders the needs of 90+% of the cycling public "pointless."

Or to put it another way: In many cases, the compromises involved in using a small-wheeled bike are often worth the benefits. But to pretend there are no compromises whatsoever is inaccurate and does a disservice to those who need to make an honest assessment of the benefits and costs of a 20" wheeled bike for their own uses.