1. Powell commented cryptocurrencies as "a speculative asset" which leaded to an adjustment in Bitcoin price but a rising trend in Gold
2. US President is considering spending $3 trillion on infrastructure in the States which draws investment capitals into the US stock market
Even there is an adjustment in the Bitcoin price these days but it is expected it will recover soon.
The reason why Bitcoin drop or I think you should change the title
"the reason in my opinion" why Bitcoin price drops recently.
For me is simple I don't care, I will keep holding my mine if dumped I will buy more, Simple im an investor, not a trader I have a target for long term, so fluctuations of price is not truly matter