I'm all for making fun of the Lakers but you're crazy if you think there aren't 29 teams out there who would trade for possibly the greatest player of all time if the right opportunity presented itself.
Not making fun of the Lakers, just speaking truth and I think you are missing the point. Of course Lebron is still a good player, but there aren't many teams that would really give up valuable assets that the Lakers would actually want in return.
In a trade, the Lakers would either want a younger star and draft picks or a very high (top 3) draft pick and solid young players in return. How many teams would be willing to give that up for a player whose going to be 35 in December and likely doesn't want to be there because he's pissed to be forced to leave Hollywood?
The answer is "not many". Now if you narrow that down to the teams who would be willing AND actually has assets that the Lakers want, slim to none.
You are thinking about crazy athletic 2-way Lebron from the Heat or the dominant general on the floor against the 73 win Warriors, but he is no longer that. His poor defense is a much bigger problem than the media are willing to portray and he takes a lot of plays off. At this point, he needs a star equal or greater than him in order to even have a chance to really compete in the playoffs.