This is a blatant lie. If you look at any actual survey data, the Tea Party is strictly a wing of the Republican party and it has been nothing but good for the political fortunes of the Republican party, which is extremely concerned with what the Tea Party wants. Without the Tea Party, the Republicans would not have had the House all these years.
The two are not mutually exclusive (although if you can supply some evidence this extreme concern with what the "Tea Party" wants translating into substantive action by the national Republican Party I'm all ears).
If you're completely unaware of how the Republican establishment has been at war with its base LONG before the "Tea Party" (e.g. at least as far back as Goldwater in 1964), you need to read up on the relevant history before making such unproductive accusations.
Heck, how about brushing up on basic human psychology, since the concept of ingratitude (in this case, of the Republican establishment) would appear to be beyond your imagination.