I’m not sure what kind of “growth” you’re taking about. Chechnya is basically a field of ruins, its capital has been leveled and most of its infrastructure destroyed.
As for the motivations for independance : Chechens have been trying to retain or gain independance essentially since Chechnya was conquered.
There’s definitely a “face saving” issue at work. It’s no secret that Putin felt that Russia had been humiliated by the outcome of the first Chechnya war (during the 90’s) which resulted in a de facto independance of Chechnya (legally, the status of this republic was to be determined in the future), and the election of one of the rebel leaders, Maskhadov, as president.
When Putin suceeded to Eltsin, he jumped on the first chance to restore Russian authority in Chechnya. The pretext was provided, IIRC, by rebels in another nearby Caucasian republic who supposedly were Chechen or operating from Chechnya. He then launched the second Chechnya war, that, after causing again more destructions, deaths, refugees, etc…allowed Russia to take again control of Chechnya (at least partially, since the war is still going on, as a guerilla war) . Blatantly rigged elections and referendums were organized to put in power a puppet of Moscow (later assassinated, and recently replaced by another puppet). In the last election, for instance, an independant observer counted 33 voters in a polling station. These 33 voters casted 790 ballots according to the officials.
For the record, Maskhadov escaped and is still the “official face” of the Chechen rebellion, though he has lost most of his influence to fundamentalist islamists that he used to try to keep at bay when he was in charge.
Diplomatic overtures have been a total failure since the Russian administration and army (at least since Putin rose to power) have showed they had no interest in breaking any deal with the Chechens, nor in respecting its word, as proved by the second war.
As for the desire for independance, it was already overwhelmingly present. The republic secceded right after the fall of Soviet Union, which resulted in the first war, won by the Chechens. It of course didn’t dissapear when the russians invaded again and throw out the independantist elected government.
And the lack of support for the “russian order” is easily understood if you read, for instance, this short report by Amnesty International about the situation in Chechnya.
Basically, the russian occupation has been an undending litany of crimes, as much war crimes (large scale destruction of residential areas, summary executions, “dissapearances”, mass murders, torture,…) and individual crimes (ransoming of arbitrarily arrested people or even of their bodies, rapes, pillaging) that, with a couple exceptions (actually I can think only of one exception, a colonel who was sentenced for the abduction, rape, torture and murder of a teenager, but I assume there has been some others), were never punished or even prosecuted.
Both wars have ultimately resulted in a very large death toll in the population (I don’t remember the %age), wide scale destructions, a very large number of refugees (some of them have been forced to come back to Chechnya by the russian authorities since), and all the crimes I mentionned above.
Given this situation, the only reason I can imagine a Chechen could have to favor a russian rule would be hoping that eventually some kind of peace or order would be restored so he and his family could expect a somewhat normal life. Apart from this survival instinct, I couldn’t expect any other feeling towards Russia other than pure hatred in these circumstances.