No way that the capacity limit is a hindrance to Bitcoin, if you want to see what happens to other high-cap or infinitely-capped cryptos, go look at the multitude of failed cryptos that would retain next to no value. This is why the 21m cap is a benefit.
I believe you're specifically referring to something like Dogecoin, right?
Well, you can look at the price of it now. It's like $0.25 per 1,000 Dogecoin at this point. Has it been going lower?