I used to read the same after Alonso poo'd all over Mclaren. That he was stuck at Renault and who would want him after he was cheating, threatened his own team boss and sulked and pouted his way through 2007.
Exactly!
At the end of the day, if you are naughty boy, it makes no difference whatsoever to your employability in the sport.
If you are fast and you can score lots of points, you will get a drive. Its as simple as that. Another reason for a team to employ you is from a marketing perspective and the money that you can generate for your team. Lewis, due to his racial background is able to attract a lot of black people to the sport. On top of which, he is (arguably) the highest profile F1 driver in Britain.
He is employable.
He is marketable.
Most teams would love to have him on board.
He is able to put bums on seats.
He has the ability to get column inches.
His options:
RBR - no seats available
Ferrari - Alonso would veto his arrival
Mercedes - no seats available (though this may change if MSc retires, though Merc do seem to want to employ only Germans)
Renault/Lotus (the black car) - this is Hamilton's only real option. If he does arrive at Lotus though, he would need to make arrangements to be outright No.1 and ensure the entire team is focused around him. Without this arrangement, Hamilton will struggle and is likely to have the same problem with Kimi, as he did with Alonso and Button. Put simply, the guy cannot extract the most out of himself, when he is working alongside another top driver. Alonso and MSc are exactly the same, so this is not unusual.
It did make me laugh when when people were suggesting that Alonso would struggle to get a decent drive after 2007. Especially given that at that point, he was widely regarded as the best driver in F1.
When you are the best at something (this goes for almost all professions), unless your are imprisoned or banned, you will find an employer/team to allow you to display your talents. Be it cricket, football, rugby, F1...you name it.
EDIT: I just saw the news story about Hamilton heading to Mercedes. Personally, if I were him, I would try and have an arrangement where he is outright No.1 so the entire team will be focused on his cause. If he can't get this arrangement, I can't see how Mercedes will be better than McLaren.