I would say the most likely reason the FBI did nothing because there was no crime. What Hunter/Joe Biden are accused of doing is a very popular scam among poli

I would say the most likely reason the FBI did nothing because there was no crime. What Hunter/Joe Biden are accused of doing is a very popular scam among politicians in most countries and unless you are dumb enough to explicitly put in writing a bribery scheme then there is very little legal risk. The scam comes about because it is fundamentally unfair to limit the employment opportunities of a politician’s family or the politician themselves after they leave office. So what happen is that companies will put a politician’s family members into positions of employment where there is a large gap between the value they produce in that position and what their reenumeration is. Alternatively, after the politician leaves office they will be parachuted into one of these scam jobs. In return for organising these scam positions the company gets some alternative value from the politician. There can be a whole range of value from impressing (helping to scam) third parties to actually getting favourable government action or policy changes. I feel like this is a very common arrangement for politicians and this is part of the reason there is a lot of pressure by the media to not cover this.