Because when it comes down to the actions the current president did it will be very difficult for the manager of the charges to effectively demonstrate that Obama has done anything radically different than previous US Presidents of both parties who have used and expanded executive power over the last 75 years. And when that becomes very obvious that Obama is just the latest in a line of power expanders who push the envelope in favor of the presidency the real question then becomes NOT did Obama do this - the real question becomes why are Republicans trying to nail his ass to the wall at this point in time when Congress has been ignoring others for a very long time now?
And I suspect a sizable portion of Americans will indeed view this is political chicanery and be not pleased by it.
To repeat, the assertion that a majority vote by the American people's elected representatives, on any matter, shows contempt for the American people is nonsense--a contradiction in terms. It was the remark of an unthinking person, just like many remarks by this President's supporters. The House was designed to be the body of Congress most responsive to the people, and it still is. Members who do not represent the will of majorities--let alone vote in ways that show contempt for them--get voted out themselves, as we see every two years.
As to your claim that it would be very hard to bring a bill of impeachment against Mr. Obama, I could not disagree more. Finding enough grounds would be the
easiest part of it. Obama has committed more serious violations of the public trust and offenses to the Constitution, and more of them, than Andrew Johnson, Bill Clinton, or even Richard Nixon ever did. I do
not see him as just the latest in a line of Presidents, from FDR on, who have expanded their powers. This is the most lawless administration, the most contemptuous of the Constitution, the U.S. has ever had. There have been so many offenses it would take a book to catalog them--and for anyone interested, one came out within the year: "Faithless Execution," by Andy McCarthy. The outrage of a few days ago is the worst of all, but only the latest in a long line.
It is only the fact this damned lying would-be king is the first black President that is saving him--so far. If Republicans tried to impeach him now, it would remind millions of white Americans who voted for him just how big a mistake they made. And for pointing it out, they would take out their anger on the people who had embarrassed them. But things may happen during the next year or so--e.g. a major terrorist attack, or the Obamacare law being held unconstitutional--to make Obama's star fall even further. And if it falls far enough, there will no longer be enough people willing to cut the first black President extra slack to save him.