When he injected himself into the Trayvon situation, that was ridiculous. Granted, the way the media handled that whole situation was ridiculous in general.
I don't blame Obama for the overall trend of identity politics, however. That can more accurately be attributed to social media's influence on political discourse. Just like how the 24 hour news cycle made news coverage very sensational, social media shrank people's attention spans and encouraged them to think less logically and more emotionally.
When I talk about identity politics, it's not as much about race as it is other things. The transgender agenda is the most blatant and absurd part of identity politics. Feminism is another part of it. While some of the race baiting by the left is bad, it still takes a backseat to the craziness of "gender identity" and the hysteria that feminists often engage in.
So, when I say the "Obama era", I'm not really focusing on him specifically. It's that the years he was in office were the pivotal ones in which media and society started getting crazier about these issues. Obama wasn't the cause. He was, in hindsight, merely a symptom.
Some conservatives were guilty of that. I think Obama was deserving of a lot of criticism, but some of the criticism was unfounded.
Nonetheless, by the time that Trump was running, I had my fill of dealing with what the left became. That's why I switched sides.