I don't think that removing taxation on bitcoin would accelerate the adoption rate of bitcoin because I think that we're already hitting the peak of adoption, what really makes it all look so slow is the people that are trying to control bitcoin and those that still don't have any belief that bitcoin is the future. It's a good thing that taxations in the US will be removed and if I'm wrong that there is more to the acceleration of bitcoin adoption then one thing that you can probably do now is to buy as much bitcoin as you can so you don't regret not buying more in hindsight.
Agreed, taxes are not the barrier to bitcoin adoption, the primary reason is that many people remain skeptical and do not believe it is the future. Like my friends, they all know about bitcoin, but nobody want to invest in it because they think it is too new, highly volatile, and lack clear regulations. They did not invest in Bitcoin out of fear of taxes, but because of a lack of trust.
Even if the government exempts investments in bitcoin from taxes, I do not think they would invest in bitcoin.
However, I do not think we've reached the peak of adoption yet. The adoption of Bitcoin is still happening, but at a slower pace than expected.