If you just watch the news, you may not understand the full extend of the matter. For me, the biggest attack on our rights is the first, not the fourth, or even the second. There have been countless bills that Obama has not only proposed, but signed into law! Some of which include: Making it illegal to peacefully protest, also to openly criticize the Government. Obama is becoming worse than GWB these days.
I don't believe Obama is limiting any ones rights. First, he is speaking out as an advocate for gay marriage. Gay people in certain states are getting married in part because he spoke out against DOMA and refused to defend it. Also, he was responsible for no major changes to any gun control laws and gun owners pretty much have the same rights as always.