The fact most games do not go to the intended maximum is not relevant to the intended design. Some people do play 1-20 games, btw, it's insulting to claim the design doesn't matter due to popular belief "majority" doesn't. Or what about people STARTING at level 10 and going to 20? This is a really bad argument that boils down to "I don't use it, so it doesn't matter".
It isn't insulting at all. It is about what the majority of people experience in the game and thus what WotC and others will dedicate more time to thoughtful design.
However, the point isn't about game
design, but is about perception of being samey between two PCs for whatever reasons. A fighter and paladin, both wearing plate, shield, and with longswords, will feel samey in many ways. As would a ranger or rogue in leather, with longbows, stealthing and scouting, etc.
My point is one feature or trait out of many doesn't necessarily have to make two PCs feel samey, and the same is true of a +2 ASI...
And again, ASI is the only racial feature that interacts strongly and directly with Ability Scores, which define how good your character is at doing specific class thing. Some other racial features MAY predispose to being a specific class, but usually they do it indirectly, as a side-effect of being good in general. Like Hill Dwarf's +1 HP per level, which is good no matter if you're playing a fighter or a wizard.
LOL of course thet interact "strongly and directly with Ability Scores", that is what they do!
Ability Scores, more importantly ability
modifiers, partially define how good your character is at doing a specific thing, but proficiency bonus plays just as much a role.
Frankly, what does it matter if an ASI or some other racial trat predisposes a race to a specific class? That doesn't mean you have to go that direction. If a person is tall, that might predispose them to playing a particular sport or game, such as basketball, but there are many people who play it (and do it well!) who are "short" by comparison. But a tall athlete can do a different sport if they choose-they don't
have to play basketball. Such an athlete might not excel as well at something like gymnastics, but they can still do it. Training, practice, dedication, and experience ultimately are much more important to long-term success.
If you allow racial ASIs to pigeon-hole your concepts of what that race/class can be, that's soley on you. There's nothing wrong with racial ASIs and frankly make races more distinct, even if several races share the same ASI, such as the number of races which all share DEX +2.