Yeah, no. Your assertion is invalid.
First off, there is no arbitrary standard of 'if you look like this, you're a Dwarf.' The traits of a Dwarf include eyes with thermographic vision, pointed ears, denser than average mass due to denser muscles and bones, a naturally more resilient immune system, a naturally stronger will and a below average height. Being short is only the most easily noticeable trait of being a Dwarf (which is different from suffering from dwarfism). If you do not have those (or the equivalents for the metavariants), you are not a Dwarf. You were not born with whatever gave them their Dwarfiness. Someone might mistake you for one, maybe. Just because someone is short, has red hair and wears green in Tir Na nOg doesn't mean they're a leprechaun, even if they look like one.
Being a Dwarf, being short and suffering from dwarfism are three very different things. One is a genetic divergence from the human genome, one is just not being as tall as the average member of your race and one is a lack of growth/development due to some form of medical condition.
There is no 'qualifying' for being a race. You either are one, or you aren't. You might not look exactly like one (Human-Looking does exist), but beneath that all, your genes say 'Elf, Ork or Dwarf.' End of story.
Keep in mind Tarislar, the increase to Lifestyle accounts for all of the things those metatypes need. For Dwarfs, it's getting furniture sized for them, doorknobs put at the right height, adjusting the grips of their weapons and equipment, etc. And do you honestly run around with a bunch of 4 foot tall people? Your 'average' dwarf is only 1.2 meters tall, which is below 4 feet. They do need to get everything tailored or purchased specifically for them, as children's clothes aren't proportioned right for them. And given the numbers of dwarfs in the world, it isn't going to be the same price as everything else. Trolls have to get everything increased by a lot, made more durable due to their horns and dermal deposits (how do trolls even put on t-shirts? I assume they mostly wear button-ups), resized so their giant fingers can manipulate it, etc. Lifestyle also covers the increase in food needed to keep a 9 foot tall person active and healthy. And again, this is for 1-5 percent of the population, a small group who are discriminated against regularly and don't generally earn as much money as others. Lifestyle costs are just about perfect for trolls and dwarfs,