Of course people will be harsh towards Lakers, there are two reasons for this. One is the fact that they have the most championships in the history of the league which makes them not really loved, even when they turned into a horrible stage after 2010 and had a very bad 10 years, they still ended up with a championship right after thanks to Lebron and AD and the bubble. So other teams fans hating Lakers is not a new thing, they end up getting at least one championship every decade, and that sometimes feels a bit difficult for other teams to care for Lakers.
Secondly they built a team with Westbrook-Lebron-AD, and that trio is an amazing one, definitely high up there with any other team, and their other players are not that bad neither, so in theory they should be winning most of their games, maybe not at the top spot but at least in fourth seed at the very worst case, they are playing very badly compared to the roster they have.
Good point. I can still remember the Warriors also ended up being hated by a lot of fans because of their championship history. I even asked a friend why he was supporting Portland Trail Blazers at that time while he is not even a fan of them. He said "I just want to see the Warriors defeated. That's all."
A usual reaction of people when they see someone reaching the top. Pull them down!
They even said its the Warriors fault to be hated for taking Durant as they were already a star studded team which we all know is not true. It's just that their plays are better than other teams.