Depending on what happens on the amnesty front, IMO the GOP could lose control of the House. Fewer voters than ever no longer identify as Reps according to a recent Gallup poll. Is it any reason why?
There are too many rapid-fire questions here to attempt to answer them all seriously. (I am not sure that you really expect serious answers anyway, as the questions appear to be merely rhetorical.)
I will say that President Obama got re-elected due to his extraordinary community-organizer skills, which managed to get out the vote in astounding numbers among groups that typically are not major players--and therefore are not counted, in the polls, among likely voters--such as young people.
And it is not necessary for that many people to identify as Republicans, in order for the GOP to retain control of the House. It is the reaction of independents that really matters here.
Are you aware of any serious political analyst who believes that the GOP is likely to lose control of the House this November?
How many serious political analysts were predicting that Barak Obama would become the Dem nominee just prior to and shortly after he announced in 2007?
If the Reps pass an amnesty, circumstances change dramatically. It is a long way to November and political attitudes can change similar to the way the generic ballot flip-flopped after the disastrous Obamacare roll out. The political punditry will react if an amnesty is passed. I can assure you that many of my fellow conservatives will stay home in 2014 or not vote for GOP members of Congress who vote for amnesty.
Eric Cantor already has a strong primary challenger who will be going after him on his GOP Dreamer amnesty. Goodlatte will also be challenged in the primary.
What good is it to have the GOP in control of the House if they use a handful of Reps and the Dems to pass legislation that most Reps are against? Boehner has violated the Hastert rule 9 times.