It’s not impossible. Would ML7 be hardstuck playing on your account no matter how old the account or how bad the matchmaking? Of course not. So it’s not impossible.
It also has to be objectively true that if you consider skill as units of improvement, once some quantity of improvement has accrued, you will be able to climb. Why is this objectively true? Because the counterargument CANNOT be true: “no amount of additional skill enables climbing.” I won’t bother explaining why this violates common sense.
So here’s the only logical, non-self-defeating argument left: “Climbing in OW is (substantially) harder than it should be due to skill inflation.” And I’m not saying whether this is true or not (that’s not the point of this post).
Skill inflation, if it’s a thing, exists because all sorts of (real or perceived) unresolved problems stack, one on top of another, gradually making progression (potentially much) more difficult over time. These problems may or may not include: smurfing, poor matchmaking, alt accounts, inadequate penalties for underperforming players, insufficient rewards for overperforming players, profit motives driving bad competitive models, teammate apathy, low pop, etc.
Citing skill inflation does not violate common sense (“i.e., climbing is impossible”), while accounting for the reality that some players can and do climb, while also accounting for the possibility that “reasonable” amounts of improvement (real vs. imagined or significant vs. insignificant) still lead to inadequate results.
So technically, if you’re not climbing, you’re not good enough to climb (if you were, you’d be climbing!). The only relevant discussion point left is whether skill inflation exists and to what extent (and perhaps the various causes).
So please stop saying/implying climbing is impossible, which takes these conversations down the same monotonous and ridiculous paths. Bad arguments are a lightning rod for mockery, misdirection, and boilerplate (on both sides).