US economy might go into recession but I am not going to say that bitcoin will be affected. The price of Bitcoin might continue to increase despite whatever is going to happen next. By then many people will start to invest their money in Bitcoin and running away from fiat, causing even major crashes on fiat, while the cryptocurrency market continues to boom.
Bitcoin will probably be affected because it is in the economy of a country. There are economical activities related in cryptocurrency, and it will surely be affected most especially that there are a lot of bitcoin users in the US. Bitcoin's price will become more volatile in the market because of the volume of people who manipulates it is also huge.
There are people who really engage in cryptocurrency and investing in managing bitcoin instead of their fiat, we all know that people are used to fiat in terms of many transaction and storing in the bank but as the bitcoin is in the process of mass adoption. They really use bitcoin as a store of value and some are still using gold to preserve their money.
In reality, bitcoin will give you so much profit compared to gold depending on the time or season where its price is really high compared in 2017.
Even right now if you check some exchanges you will notice that the rate of buying Bitcoin has increased more than the rate of selling, showing that more people are ready and believe in bitcoin as their safe haven.
A price is also a factor, the reason why people are buying bitcoin because of its lower price, and they will just sell bitcoin if they know that it increases its price in the market. Bitcoin is volatile that's why some people are taking the risk to buy bitcoin even if there's no certainty of when will it increase its price.